Suppose that you are given a polypeptide sequence containing the following seque

Question

Suppose that you are given a polypeptide sequence containing the following sequence of amino ac tyrosine, proline, aspartic acid, isoleucine, and cysteine. Use the portion of the genetic code given i the table below to determine the DNA sequence that codes for this polypeptide sequence. mRNA UAU, UAG CCU, CCC, cCA, CCG GAU, GAC AUU, AUC, AUA UGU, UGC Amino acid tyrosine proline aspartic acid isoleucine cysteine A. AUGGGUCUAUAUACG B. ATGGGTCTATATACG C. GCAAACTCGCGCGTA D. ATTGGGCTTTAAACA . Cytosine makes up 42% of the nucleotides in a sample of DNA from an organism. Approximate percentage of the nucleotides in this sample will be thymine? A. 8% B. 16% C. 31% D. 42% Nondisjunction of a single pair of autosomes can lead to all of the following except A. Aneuploidy B. Monosomy. C. Trisomy. D. Euploidy. . RNA differs from DNA in that RNA A. Is sometimes single-stranded B. Contains a different sugar molecule. C. Contains the nitrogenous base uracil. D. All of the above Women have sex chromosomes of XX, and men have sex chromosomes of XY. Which of grandparents could not be the source of any of the genes on his Y-chromosome? A. Father's Mother. B. Mother's Father. C. Father's Father. D. Mother's Mother, Mother's Father, and Father's Mother. E. Mother's Mother. page 5 of 10

Explanation / Answer

1- b

2-a

3-d

4-d

Note- cytosine is 42 mean guanine will also be 42 total C and G will be 84 out of 100 16 will be for thymine and adenine . Equal amount of both mean 8 for each .

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