Which of the following statements best describes a gene?
a) a nucleotide that will be a monomer of dna only
b) a protein that will have a structural role
c) a sequence of bases in dna that codes for a specific polypeptide
d) homologous chromosomes that contain instructions to make lipids
e) sister chromatids

Aresearcher designed an investigation to test what effect eating different types of food would have on blood insulin levels. she selected 10 male subjects who were all 25 years of age and in good health. the experiment took place over 3 days. at 8: 00 a. m. on each day, the subjects ate a meal consisting of only 1 type of food. they had their blood insulin levels measured after consuming the meal. on day 1 they ate a high fat diet, on day 2 they ate a high protein diet, and on day 3 they ate a high sugar diel what is the independent variable in this experiment? a the age of the subjects b the blood insulin level c the type of food consumed d the time of day the meal was consumed

The relationship between intron and exon

Which individual below would be considered heterozygous? a. dd b. dd c. dd