In a Punnett square:

A. all the possible types of sperm are lined up either horizontally or vertically.
B. all the possible types of eggs are lined up either horizontally or vertically.
C. the results show the offspring's expected genotypes.
D. All of the choices are correct.
E. Only two of the choices are correct.

Dna, in the nucleus carries the genetic code for making proteins in ribosomes. in the diagram, b, represents the proteins produced. dna cannot leave the nucleus to carry the genetic information to the ribosome where proteins are produced. how does the genetic code get from the nucleus to the ribosome? what does a represent? now

In trying to determine whether dna or protein is the genetic material, hershey and chase made use of which of the following facts? a) dna contains sulfur, whereas protein does not. b) dna contains phosphorus, whereas protein does not. c) dna contains nitrogen, whereas protein does not. d) dna contains purines, whereas protein includes pyrimidines.

How energy move through ecosystem ?