What are the main functions of DNA polymerase?

a. holds DNA strands apart and attracts bases

b. binds nucleotides and corrects base pair errors

c. zips and unzips the double-stranded DNA

d. breaks hydrogen bonds and exposes bases

Based on hierarchical organization - put these structures in order from smallest to largest. - Biceps brachii muscle - Skeletal muscle cell - Myosin protein - Skeletal muscle tissue - Muscular system

System that serves as a barrier against infection and injury

What would happen to an ecosystem if all the organisms that breakdown dead plant and animal matter suddenly disappeared?

Two alligators are heterozygous for albinism (Aa). The dominant allele (A) codes for normal pigmentation, and the recessive allele (a) codes for no pigmentation. What percentage of their offspring would have an albino phenotype? a. 25% b. 75% c.

What trna anticodon will complete this mrna codon cua

A physical environment with different species that interact with one another and with non-living things is called a?

Are unicellular organisms able to live in any environment?

What is the primary purpose for the receptor proteins located within the cell

Which of the following best describes what happens to water molecules after they have condensed to form clouds

In comparison to that of adult hemoglobin, how is the fetal oxygen-hemoglobin dissociation curve shifted? a. to the left of the adult curve, indicating a lower oxygen affinity of fetal hemoglobin b.