DYB3023/DYB30073 GENETICS by https://padlet.com/asyapaid/9xpxpb4b34xc Everything counts en-us 2019-12-16 07:23:47 UTC 2025-11-17 22:16:38 UTC hello@padlet.com https://padlet.net/icons/png/1f4ab.png Why is there variation between non identical twins. https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424815592 Non-identical twins are the result of a mother releasing two eggs at once, both of which become fertilised by different sperm resulting in two separate zygotes which develop into two children.

Like most full siblings, non-identical twins share 50% of their DNA. 
- Vanisri Kumarii

]]> 2019-12-17 01:12:08 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424815592 Why do some twins look different https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424816470 This happens because many variation alleles.dominant trait not only blacks..
Other than that, those twin  fertilised in different eggs..which means their mother produce 2 egg in same time..]]> 2019-12-17 01:15:49 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424816470 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424816548 This is because the black mom may released two eggs , and it is fertilised by two different sperm from the white dad for each egg. Each sperm or egg cell possesses a random selection of genes from its mother or father. This make the biracial twin possible.

-Fred]]> 2019-12-17 01:16:09 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424816548 Why twins don't look same ?? https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424816700 Fraternal twins occur when two separate eggs are fertilized during pregnancy. Fraternal twins do not share the exact same DNA. In fact, they share only about half the same genes. - Jay...hidop kene chill 😉😉😝😝]]> 2019-12-17 01:16:48 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424816700 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424816706 Because non identical, or dizygotic, twins are 2 separate fertilized eggs, they usually develop 2 separate amniotic sacs, placentas, and supporting structures. Identical, or monozygotic, twins may or may not share the same amniotic sac, depending on how early the single fertilized egg divides into 2.

If twins are a boy and a girl, clearly they are fraternal twins, as they do not have the same DNA. A boy has XY chromosomes and a girl has XX chromosomes. Girl-boy twins occur when one X egg is fertilized with an X sperm, and a Y sperm fertilizes the other X egg.

Denise
]]> 2019-12-17 01:16:49 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424816706 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424816911 Fraternal twins (from two zygotes, what we call the earliest embryo when the egg and sperm fuse).

This type of twinning occurs when more than one egg is released from the ovary at ovulation. Normally just a single egg is selected and release and both of the eggs are fertilised by different sperm. These twins are no more genetically similar than siblings born years apart.
-Karthiga

]]> 2019-12-17 01:17:44 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424816911 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424817133
-Jv-]]> 2019-12-17 01:18:44 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424817133 Why biracial twins exist https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424817262 Each sperm or egg cell possesses a random selection of genes from its mother or father. While not the most probable event, a sperm or egg may randomly acquire, for example, mostly alleles that confer light skin coloration or mostly alleles that confer dark skin coloration. In such cases, fraternal twins can differ from each other quite dramatically in terms of skin color or other physical characteristics.
 - Anna 😘]]> 2019-12-17 01:19:18 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424817262 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424817303 Because fraternal, or dizygotic, twins are 2 separate fertilized eggs, they usually develop 2 separate amniotic sacs, placentas, and supporting structures. Identical, or monozygotic, twins may or may not share the same amniotic sac, depending on how early the single fertilized egg divides into 2.

Riyahshini Ramachandran ]]> 2019-12-17 01:19:34 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424817303 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424817377 When a biracial couple has fraternal twins, the traits that emerge in each child depend on numerous variables, including “where the parents’ ancestors are from and complex pigment genetics

zee]]> 2019-12-17 01:19:57 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424817377 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424817382 Genetics that have at the twin have a different genotype. They got from their parents that from white and mixed color skin. Others, two seperate eggs (ovum) are fertilised by two seperate sperm, resulting in fraternal will have (two cell) twins.

Nay]]> 2019-12-17 01:19:59 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424817382 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424817483 These non identical twins can also call Fraternal twins, are as alike as any two siblings. They may look very different. Variation among the alleles may results this. 
-yuva]]> 2019-12-17 01:20:32 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424817483 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424818313 This is because non identical twin are results of their blood mother fertilised two different egg. Maybe it's because of the chromosome got distracted when its in zygote phase by radioactive when the mother exposed to radioactive or uv lights... So that the non identical twin have different traits on them... 

Or maybe the non identical twin which one follows dominant traits and other follows recessive which have different traits to each other.

-Nancy Zavier]]> 2019-12-17 01:24:14 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424818313 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424818378 The non identical twins formed because 2eggs are fertilised by 2sperm at the same time .The white trait from the dad is combined with the white trait of the mother and the white girl is formed.The white trait from the dad and black trait from her mother combined and formed the black girl.
-Dhanusia-]]> 2019-12-17 01:24:32 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424818378 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424818499 The combination of alleles of a gene that an individual receives from both parents determines what biologists call the genotype for a particular trait, such as hair texture. The genotype that an individual possesses for a trait, in turn, determines the phenotype—the observable characteristics—such as whether that individual actually ends up with straight, wavy, or curly hair. 
- annur]]> 2019-12-17 01:24:58 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424818499 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424819310 2019-12-17 01:28:06 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424819310 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424820151 Althought they were conceived at the same womb,they are two seperate individuals.Each come with the their own genes,half from mother and half from father...it may cause they look and act differently..


Silvina]]> 2019-12-17 01:31:49 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424820151 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424822122 Why is biracial or fraternal twin are different from each others?

Fraternal twin happens when there two different sperms and two different eggs are inside the womb. They’re maybe twin but they are not look alike each other. 

-Arif Azhad]]> 2019-12-17 01:39:54 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/424822122 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/440032972 CELL SICKLE 
GROUPS VANI FRED NAYLI]]> 2020-02-04 01:31:37 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/440032972 TOPIC 6 - CANCER GENE https://padlet.com/asyapaid/9xpxpb4b34xc/wish/440033105 ANNA 
DENISE 
RIYAH
KARTHIGA]]> 2020-02-04 01:32:06 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/440033105 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/440033124 Group 3
Topic 2 Genome sequence
Jv, silvina, dhanu]]> 2020-02-04 01:32:10 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/440033124 Group Annur Laila Juliana https://padlet.com/asyapaid/9xpxpb4b34xc/wish/440033983 Topic 5
Secret of X chromosomes ]]> 2020-02-04 01:34:49 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/440033983 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/440034340 -Nancy
-Zee
-Yuva]]> 2020-02-04 01:35:42 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/440034340 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/440034633 Topic immortal cell
☆JAFIREP☆
Jay , Arif , Nafi]]> 2020-02-04 01:36:38 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/440034633 Tongue rolling https://padlet.com/asyapaid/9xpxpb4b34xc/wish/675089163 The ability of rolling tongue is dominant traits.If we can roll tongue we inherited either two dominant factors which is(one from parents)or one dominant factor or one recessive factor.If we weren't able to roll our tongue,we inherited two recessive factors(one from each parent).]]> 2020-08-11 01:42:45 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/675089163 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/684055826 This doesn’t mean tongue rolling has no genetic “influence,” McDonald says. More than one gene could contribute to tongue-rolling abilities. Perhaps the same genes that determine the tongue’s length or muscle tone are involved. But there isn’t a single dominant gene that’s responsible.]]> 2020-08-18 01:25:23 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/684055826 Tongue rolling shaveenavenn https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1768179317 Tongue rolling is not considered as an inherited trait because the twin studies demonstrate that it is influenced by both genetics and the environment. Thus the ability of rolling tongue is dominant traits.]]> 2021-09-26 06:53:36 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1768179317 TONGUE ROLING https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1768920782 A twin study found that identical twins were no more likely than fraternal twins to both have the same phenotype for tongue rolling. Moreover, cloverleaf tongue is the ability to fold the tongue in a certain configuration with multiple bends it is so far proved not inheritable as few people whose parents cannot do they themselves can do it. This trait has been speculated by David D. ]]> 2021-09-26 16:45:18 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1768920782 Tongue Rolling mehanathanvinisha01 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1770740134 The tongue rolling ability occurs due to the influence of a dominant allele of the gene. A person who has either one or two copies of the dominant allele will be able to twist their tongue. in most cases, parents with a twisting-tongue ability can give birth to non- tongue twisters and vice-versa. 

Family studies clearly demonstrate that tongue rolling is not simple genetic character, and twin studies demonstrate that it is influenced by both genetics and the environment. Despite this, tongue rolling is probably the most commonly used example of a simple genetic trait in humans. 

_VINISHA_ ]]> 2021-09-27 11:08:32 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1770740134 Tongue Rolling https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1773677352 My thought on tongue-twisting or rolling is not a hereditary sickness or disorder, but rather a unique behaviour performed by a person utilising his tongue, which is why tongue rolling is not only a genetic attribute. People can twist in a variety of ways since the front section of the tongue is quite flexible.
- Amiliya]]> 2021-09-28 06:49:25 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1773677352 TONGUE ROLLING umminajlaakhalisah https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1777161100 The tongue rolling ability occurs due to the influence of a dominant allele of the gene. A person who has either one or two copies of the dominant allele will be able to twist their tongue. In the case that a person is born with two recessive alleles, they cannot twist their tongue. In most cases, parents with a twisting-tongue ability can give birth to non-tongue twisters, and vice versa.
- UMMI-]]> 2021-09-29 07:07:53 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1777161100 TONGUE ROLLING https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1777190822 It’s almost certainly not a genetic trait, or if it is, you inherit the capacity to be able to roll your tongue, but not necessarily the ability. Studies show that not all identical twins can roll their tongues whereas they have almost 100% identical genes. Other studies have shown that at least some people, with training and practice, can learn to roll their tongues. Whether or not it’s because they inherited the capability and simply had to learn how to use it is not known.
-FATIN-

]]> 2021-09-29 07:21:15 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1777190822 Ability to role tongue. tamilselviselvarajoo https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1778501397 Ability to role tongue it is not a genetic trait because studies proven that not all identical twins can twist or role their tongue. It due to the one of the identical twin has either one or two copies of the dominant allele that will make able to twist or role their tongue. On the other hand, studies show that a good practice also can make a person who can't role their tongue can do it within one week. Moreover, parents that can capable to role their tongue can give birth a child that does not have the capability of rolling tongue. 

Tamilselvi-DBT5C]]> 2021-09-29 15:32:17 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1778501397 TONGUE ROLLING pavitravelumurugan1901 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1783339358 Tongue rolling is the ability to roll the lateral edges of the tongue upwards into a tube. Rolling the tongue into a tube shape is often described as a dominant trait with simple Mendelian inheritance, and it is commonly referenced in introductory and genetic biology courses. Moreover not everyone can do that. It is a dominant capability of a person. I can do so.
*Pavitra*]]> 2021-10-01 04:51:05 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1783339358 tongue rolling https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1783341492 Both studies found rolling offspring of non-rolling parents, so the trait must be more complicated than the myth says. The discrepancy could be due to more complicated genetics, involving multiple alleles or multiple genes, or some kind of environmental influence.]]> 2021-10-01 04:52:37 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1783341492 Tongue Rolling https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1784121085 tongue rolling is not a simple genetic character, and twin studies demonstrate that it is influenced by both genetics and the environment.
-Yong Xian-]]> 2021-10-01 13:07:59 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1784121085 Tongue Rolling https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1784713257 In my opinion, maybe there is some genetic element, but not one that is straightforward. Instead it might involve multiple genes or variants of genes. But according to some studies person who cant role their tongue  able to role their tongue by practicing it. In short, maybe the ability to role tongue can achieve by a good practice.😉
-ROHINI-]]> 2021-10-01 16:56:27 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1784713257 TONGUE ROLLING https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1784863112 In my view, ability tongue rolling is not affect by genetics traits but it occur due to the influence of a dominant allele of the gene. The study proven that not all identical twins have the  ability for tongue rolling. If 2 twins out of 10 twins has the ability means the twin has one or two copies of dominant allele. On the other view, the studies also has proven that if a person who don't have the ability of tongue rolling,  can able to make roll their tongue like others by having a good practice. Scientists are not saying genetics plays no role in the tongue roll. It could be that several genes might play a part in making small changes in tongue .muscles that might allow the tongue to roll. However, there is no one gene that controls the trick.

-rittigaa dbt5c-]]> 2021-10-01 18:06:25 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1784863112 Tongue rolling is not just a genetic trait because more than one gene could contribute to tongue-rolling abilities. Perhaps the same genes that determine the tongue’s length or muscle tone are involved. But there isn’t a single dominant gene that’s responsible.-The tongue-rolling gene comes in two forms, one that lets you roll your tongue and another that doesn't. If you have a version of the tongue-rolling gene that lets you roll your tongue and a version that doesn't, then you can roll your tongue. https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1785619427 -safirah-

]]> 2021-10-02 08:09:54 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1785619427 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1786557393 The tongue rolling ability occurs due to the influence of a dominant allele of the gene. A person who has either one or two copies of the dominant allele will be able to twist their tongue. In the case that a person is born with two recessive alleles, they cannot twist their tongue. In most cases, parents with a twisting-tongue ability can give birth to non-tongue twisters, and vice versa.

- Auni - ]]> 2021-10-03 00:14:20 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1786557393 renushini28 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1787731214 Tongue rolling is an ability at where not everyone is able to roll their tongue . Although some of the scientific research said that it is a genetic ability but in another hand nowadays many has the chances to try out the tongue rolling which is quite possible . So many practices on how to roll the tongue is available now so that people who is unable to roll can try it out by practicing some methods . I think there is some other gene that is contributing to the tongue at where it is able to change the ability of tongue rolling in a person . - renushini ragu - ]]> 2021-10-03 18:10:55 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1787731214 in my opinion , it is a total myth that this ability is due to inheritance. Tongue rolling seems to be an ability that comes with practice, not something you are born with. Just like any other weird skills like raising an eyebrow or being able to move ear muscles . narhmata https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1791593056 -narhmata]]> 2021-10-05 03:13:11 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1791593056 Tongue rolling https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1791683298 I somehow believe that genetic can give a big influence in the ability of tongue rolling. However, I also believe that tongue rolling can be achieved through practicing. Maybe after all this ability depends on our own will and our mindset because I agree on the fact that everybody can do tongue rolling.

-Jescynthia Francis]]> 2021-10-05 03:49:04 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1791683298 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1793627431 Rolling the tongue into a tube shape is often described as a dominant trait with simple Mendelian inheritance, and it is commonly referenced in introductory and genetic biology courses. There is little laboratory evidence supporting the hypothesis that tongue rolling is inheritable -FAIZAH DBT5C.]]> 2021-10-05 16:03:40 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1793627431 In my opinion, tongue rolling is not just a genetic trait because i believe it is possible if we practice. - mithra mithra2905 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1800011433 2021-10-07 14:32:51 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1800011433 tongue rolling https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1801267774  tongue rolling is not genetically controlled but people learn this trait with age and experience. it can be achieved with practice
khairiah]]> 2021-10-08 01:02:33 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1801267774 rolling tongue is a skill that can be acquired through practicing because when i was child i can not roll my tongue but when i growing up i able to do it https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1803824968 2021-10-09 08:50:22 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1803824968 TONGUE ROLLING https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1804116026 my opinion about tongue rolling is it is not a inherited as it is influenced by both genetics and the environment. even without genetics, tongue rolling seems to be an ability that comes with practice, not something you are born with. 
-irdina-]]> 2021-10-09 14:04:29 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1804116026 Tongue rolling https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1810423871 The tongue rolling ability occurs due to the influence of a dominant allele of the gene. A person who has either one or two copies of the dominant allele will be able to twist their tongue. In the case that a person is born with two recessive alleles, they cannot twist their tongue
-Danish-

]]> 2021-10-12 11:45:15 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1810423871 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1813702813 This article prove me wrong about tongue rolling 'thing' as a genetic traits that my teachers taught me at school. The proof is that, that one twin can roll his tongue while the other one can't do that. However, some people especially children can't roll their tongue. This trait is not influenced by the genetic because you can learn and practice how to do it. Your age and the time taken needed for you to roll your tongue might be one of the factor for this ability to achieve
- aina]]> 2021-10-13 12:17:02 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1813702813 In my opinion, don't be discouraged if you are not a member of the Tongue Rolling Elite, some may train their tongue to obey. In fact, one of the McDonald's students conducted a small study asking 10 non-speaking participants to try to roll their tongue every day, and after a week of practice, one participant managed to roll the tongue. https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1818452362 -AISYAH-]]> 2021-10-15 00:59:18 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1818452362 https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1884303825 Both investigations discovered rolling children of non-rolling parents, implying that the feature is more complex than the legend suggests. The disparity could be attributable to more intricate genetics, such as many alleles or genes, or environmental factors.]]> 2021-11-11 14:24:44 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1884303825 tongue roll https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1928456734 it can be seen that tongue roll is not a genetically inheriting trait. dominant and recessive allele does plays part in determining ones trait however a proven research has shown that tongue roll is plausible with adequate training. which proves its not a genetic inheritance. ]]> 2021-12-04 04:26:33 UTC https://padlet.com/asyapaid/9xpxpb4b34xc/wish/1928456734