https://padlet.com/11801431/k4lcm1xmfhnr Made with a lightning strike of genius en-us 2018-03-30 18:33:41 UTC 2023-03-29 04:39:11 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Alarmclock.png 11801431 https://padlet.com/11801431/k4lcm1xmfhnr/wish/247539929 a small fruit fly, used extensively in genetic research because of its large chromosomes, numerous varieties, and rapid rate of reproduction]]> 2018-03-30 18:43:04 UTC https://padlet.com/11801431/k4lcm1xmfhnr/wish/247539929 11801431 https://padlet.com/11801431/k4lcm1xmfhnr/wish/247540382 At room temperature, fruit flies can develop into adults within one to two weeks. The egg and larval stages span approximately eight days, while the pupal stage lasts six days. The adult fruit fly lives for several weeks. Twenty-four hours after a female fruit fly lays her eggs, larvae hatch]]> 2018-03-30 18:47:24 UTC https://padlet.com/11801431/k4lcm1xmfhnr/wish/247540382 11801431 https://padlet.com/11801431/k4lcm1xmfhnr/wish/247540644 deoxyribonucleic acid
(The Double Helix)
In terms of the number of genes,, however, the comparison isn't nearly so lopsided: The fly has approximately 15,500 genes on its four chromosomes, whereas humanshave about 22,000 genes among their 23 chromosomes. Thus the density of genes per chromosome in Drosophila is higher than for the human genome.]]> 2018-03-30 18:50:15 UTC https://padlet.com/11801431/k4lcm1xmfhnr/wish/247540644 11801431 https://padlet.com/11801431/k4lcm1xmfhnr/wish/249966263 In biology, a mutation is the permanent alteration of the nucleotide sequence of the genome of an organism, virus, or extra chromosomal DNA or other genetic elements.caused by environmental factors such as ultraviolet radiation from the sun, or can occur if an error is made as DNA copies itself during cell division. Example Flies with vestigial wings cannot fly: they have a defect in their "vestigial gene," on the second chromosome. These flies have a recessive mutation. Of the pair of vestigial genes carried by each fly (one from each parent), both have to be altered to produce the abnormal wing shape]]> 2018-04-09 18:06:35 UTC https://padlet.com/11801431/k4lcm1xmfhnr/wish/249966263 11801431 https://padlet.com/11801431/k4lcm1xmfhnr/wish/249976538 M I T O S I S : a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.
M E I O S I S: a type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell, as in the production of gametes and plant spores.

 (Meiosis is for sex cells mitosis is for body cells and meiosis goes through two stages of genetic separation)
On the other hand, a diploid cell that enters meiosis with eight four chromosomes will pass through two meiotic divisions to produce four haploid gamete cells, each with only four two chromosomes. Mitosis is a single cell division, resulting in the production of two genetically identical diploid daughter cells.]]> 2018-04-09 18:24:36 UTC https://padlet.com/11801431/k4lcm1xmfhnr/wish/249976538 11801431 https://padlet.com/11801431/k4lcm1xmfhnr/wish/250073324 During gamete production, each egg or sperm cell receives just one of the two gene copies present in the organism, and the copy allocated to each gamete is random (Gene variation). Genes for different traits are inherited independently of one another (law of independent assortment). (this is what depends on a fruit flies eye color)]]> 2018-04-10 00:11:50 UTC https://padlet.com/11801431/k4lcm1xmfhnr/wish/250073324 11801431 https://padlet.com/11801431/k4lcm1xmfhnr/wish/250079570 Homozygous is a word that refers to a particular gene that has identical alleles on both homologous chromosomes. It is referred to by two capital letters (XX) for a dominant trait, and two lowercase letters (xx) for a recessive trait the genetics term heterogeneous refers to a pair of genes where one is dominant and one is recessive — they're different. Like all words with the prefix hetero, this has to do with things that are different — specifically genes. ... If you inherited the same gene from both parents, it's homozygous — the same.]]> 2018-04-10 00:44:57 UTC https://padlet.com/11801431/k4lcm1xmfhnr/wish/250079570 11801431 https://padlet.com/11801431/k4lcm1xmfhnr/wish/250080102 A genotype is the label for the for the genetic trait (Xx) And a phenotype is the what the genetic trait looks like (genotype RR, phenotype Red eyes)]]> 2018-04-10 00:49:00 UTC https://padlet.com/11801431/k4lcm1xmfhnr/wish/250080102 11801431 https://padlet.com/11801431/k4lcm1xmfhnr/wish/250083447 A dominate trait is the trait that dominates the recessive trait (only need one for the phenotype to show) A recessive trait is a trait that you need two of for the phenotype to show]]> 2018-04-10 01:11:06 UTC https://padlet.com/11801431/k4lcm1xmfhnr/wish/250083447 11801431 https://padlet.com/11801431/k4lcm1xmfhnr/wish/250084760 incomplete dominance is where one allele isn't dominated by the other allele so there blended]]> 2018-04-10 01:20:43 UTC https://padlet.com/11801431/k4lcm1xmfhnr/wish/250084760 11801431 https://padlet.com/11801431/k4lcm1xmfhnr/wish/250085707  A trait associated with a gene that is carried only by the male or female parent]]> 2018-04-10 01:28:01 UTC https://padlet.com/11801431/k4lcm1xmfhnr/wish/250085707 11801431 https://padlet.com/11801431/k4lcm1xmfhnr/wish/250086297 the record of descent of an animal, showing it to be purebred]]> 2018-04-10 01:31:59 UTC https://padlet.com/11801431/k4lcm1xmfhnr/wish/250086297