Disorders, such as sickle cell anemia, are the result of mutations of the

A) brain.

B) chromosomes.

C) heart.

D) nucleolus

Which term describes the chromosomal abnormality of having three pipes of a single chromosome

Two insect groups vary genetically by two genes. When put together, they were able to reproduce and produce offspring that could also breed. Which best describes this insect population?

Which part of interphase is characterized by the cell making final preparations to divide?

The process where bacteria converts usable forms of nitrogen back to atmospheric nitrogen?

In a relatively small iguana population the allelic frequency is tracked for three generations. Webbing is a recessive allele; no webbing is the dominant allele.

What as Redi's constant, conditions that are kept the same in an experiment so that differences in results can be interpreted correctly, in his scientific experiment?

Tomato plants usually have hairy stems. Hairless stems are present in tomato plants that are homozygous recessive for this trait.

What is the shape of a vessel cell from a plant stem and how does its shape match it's functions?

The effects of the sympathetic nervous system are divergent, meaning that a single stimulus can have an effect on a large number of targets. in other words, when the sns is activated, all of the organs it innervates are stimulated.

Which two strata of the epidermis are most susceptible to cancer?