Two sister chromatids are joined at the centromere prior to meiosis. which statement is correct? a. these chromatids make up a diploid chromosome. b. barring mutation, the two sister chromatids must be identical. c. the cell that contains these sister chromatids must be haploid.

Plz ! cattle ranchers and dairy farmers rarely allow all of their animals to reproduce instead they practice selective breeding and only encourage the reproduction of animals with specific features. which of the following cows would a dairy farm most likely choose to reproduce? a. a cow that makes a lot of milk. b. a cow that can run quickly. c. a cow with a think, soft fur. d. a cow with large, strong hooves.

What factors contribute to the effect an environmental toxin has on the human body?

Which claim correctly describes how genes can produce a phenotype? one gene is responsible for all traits. each trait is determined by a single gene. one gene can be responsible for many traits. each gene is responsible for exactly one trait.