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Exposure to the sun

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How are human sex cells labeled

x,y

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How many chromosomes does a human body hold

46

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Cells use the the information encoded in their genes which is like a protein library, "blueprint"

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Two different alleles

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Ribosomes

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For what molecule do genes contain the instructions for building?
Proteins

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Question: Why do scientists use computer programs to model protein structure and function?
Answer: You have trouble seeing them with something else.

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15. What is heredity: Heredity is the passing on of traits.

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15. What is heredity: Heredity is the passing on of traits.

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18. Does the second baby in the "What is Heredity?" animation inherit the exact same chromosomes as the first? Do both babies have a complete set? 

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18. Does the second baby in the "What is Heredity?" animation inherit the exact same chromosomes as the first? Do both babies have a complete set? 

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Answer: No the babies do not have the same chromosomes. But both babies have a complete set 23 from mom 23 from dad making a complete set of 46.

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why aren't children identical to either one of there parents
answer= The DNA is combined. also they each inherit different genes from each parents.

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what is the 4 letter DNA alphabet and what are the special rules by which the alphabet pieces bond together?

ATCG A always pair with T and G always pairs with C

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what are chromosomes?
a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.

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What are genes made of?
Genes are made of DNA.

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2 of the same alleles for a trait

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What is a gene?
A gene is the instruction manual for the body.

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Give an example of how environmental factors can influence a trait.
Eating healthy decreases the risk of heart disease.

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How many genes do humans have?
25,000.

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 question 11. how many different kinds of proteins does one cell contain?

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 question 11. how many different kinds of proteins does one cell contain?

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hundreds

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What is "DNA" stand for

Answer: Deoxyribonucleic Acid

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Something that makes you who you are.

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how are traits inherited?
you get one allele from each parent

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What is DNA?
Genetic instructions.

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In humans, how many chromosomes does each parent pass on to their offsprings?

23

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List the types of traits that exist?
Physical and behavioral traits.

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What is a trait?
A noticable feauture or quality in a person