Question

please help me

1.) how does DNA determine a trait such as eye color?

a.) DNA codes for proteins that determine eye color
b.) DNA codes for mRNA that determine eye color
c.) DNA interacts with proteins to control eye color
d.) DNA contains pigments which make up eye color

what is the genetic code?

a.) the order of amino acids in proteins makes up the genetic code
b.) the order of amino acids in mRNA makes up the genetic code
c.) the order of nitrogen bases in tRNA makes up the genetic code
d.) the order of nitrogen bases in DNA makes up the genetic code

if one rabbit has brown fur and another has black fur, what conclusion can you draw about the rabbits' genetic codes?

a.) the order of bases in the section of DNA that codes for fur color in the brown rabbit cannot be read by mRNA
b.) the genetic code of the rabbit with black fr produces more protein then the genetic code of the rabbit with brown fur
c.) the genetic code of the rabbit with black fur carries the instructions for the different protein than the genetic code of the rabbit with brown fur
d.) the order of bases in the section of DNA that codes for fur color is the same in both rabbits

Answer 1

Q1. The answer is b.) DNA codes for mRNA that determine eye color

According to the central dogma of molecular biology, DNA codes for RNA and RNA codes for protein. Thus, a sequence of DNA responsible for eye color is transcribed into mRNA which is then translated into protein that determine eye color.

Q2. The answer is d.) the order of nitrogen bases in DNA makes up the genetic code

The genetic code is the set of rules that explains how the information is transferred from DNA to the proteins. It is found in the nitrogen base sequence of the nucleic acids in DNA. Hence, the order of nitrogen bases in DNA makes up the genetic code.



Q3. The answer is c.) the genetic code of the rabbit with black fur carries the instructions for the different protein than the genetic code of the rabbit with brown fur.

The genetic code of the rabbit with black fur differs from the genetic code of the rabbit with brown fur. Other words, a DNA sequence responsible for fur color differs between these two groups of the rabbit. Consequently, different mRNAs and later proteins will be synthesised.