What is copied during replication?

mRNA

rRNA

tRNA

DNA

What is the point at which a DNA strand is unzipped so that it can form new complimentary strands?

double helix

polymerase

replication fork

nuclease What is the function of DNA polymerase?

neither adding base pairs nor correcting errors

both adding base pairs and correcting errors

adding base pairs

correcting errors Two strands of DNA produced during replication are copies of each other because each strand in the double helix is .

continuous

complementary

identical

connected What is the result of a mutation during replication?

The strands are continuous.

The strands are broken.

The strands are different.

The strands are identical

In eukaryotes, genetic information is passed to the next generation by processes that include mitosis or meiosis. which of the explanations identifies the correct process and supports the claim that heritable information is passed from one generation to another? a. mitosis, followed by cytokinesis, produces daughter cells that are genetically different from the parent cell, thus insuring variation within the population. b. during mitosis, dna replication occurs twice within the cell cycle to insure a full set of chromosomes within each of the daughter cells produced. c. in asexual reproduction, a single individual is the sole parent and passes copies of its genes to its offspring without the fusion of gametes. d. single-celled organisms can fuse their cells, reproducing asexually through mitosis to form new cells that are not identical to the parent cell.

Can a trait be both polygenic and have multiple alleles? explain why or why not.

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