10. A gene has the following as part of its nucleotide sequence: 5\' -A-A-G-T-C-

Question

10. A gene has the following as part of its nucleotide sequence: 5' -A-A-G-T-C-G-3 synthesized from this gene? that the reading frame begins with the first A) strand of this gene? transcript in part A? A. What is the corresponding sequence on the transcript B. How many codons result from this sequence? (assume C. What is the corresponding sequence on the non-coding D. What is the enzyme that catalyzes the formation of the 11. Answer either A or B (choose only one). Be brief but accurate! A. What is phenotypic plasticity? OR B. What is the difference between epistasis and pleiotropy? 12. Give an example of each of the following using humans as a study organism: a. polygenic inheritance b. sex-linked trait c. autosomal dominant trait

Explanation / Answer

10.

A. Transcript is 5'- A - A - G - U - C - G - 3'

B .There will be two codons, A-A-G & U-C-G

C. Non-coding strand , 3' - T - T - C - A - G - C - 5'

D. Enzyme is DNA dependant RNA polymerase

11.

Phenotypic plasticity refers to the changes that occur in an organism's behaviour , physiology and morphology to cope with the sorrounding environmental variation.

The changes may or may not be permanent throughout the organism's life time.

12.

a. Polygenic inheritance- skin colour

b. Sex-linked trait- colour blindness

c. Autosomal dominant trait- Poly cystic kidney disease

Hopefully it helps thanks.

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