Mark received one dominant allele for brown hair from his father and another dominant allele from his mother.

Which word describes his genotype?

A blonde

B heterozygous

Chomozygous

D brown

Archaea are different from Bacteria in that Archaea A. have structures and molecules that are more similar to eukaryotes than bacteria. B. have structures that are more similar to bacterial structures. C.

Which is the primary consumer in this food chain?1. grass 2. rabbit 3. snake 4. hawk

13. Suppose a population is carrying a condition controlled by two alleles: R (dominant) and r (recessive).

Which of these vessels returns blood to the left atrium of the heart?

List the plant and animal characteristics of euglena

Identify and describe an ecosystem in or around your home. List all the biotic and abiotic factors interacting there and explain how you think they biotic and abiotic factors interacting there and explain how you think they affect each other.

Which best explains why virus are not classified by Linnaean taxonomy? A. virus do not contain any genetic information or cell wall B. virus share many characteristics with several of the kingdoms C.

What does genetics explain?

What is one reason why many geologists did not at first accept the theory of continenal drift?

purple flowers are dominant over white flowers. A heterozygous purple flower is crossed with another heterozygous purple flower. The ratio of purple to white would be