A change in a cell's DNA sequence is

A. replication.
B. transcription.
C. a mutation.
D. translation.
E. an operon.


C. a mutation

Biology & Microbiology

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In a homozygous genotype:

A. both alleles for a given trait are the same. B. the two alleles for a given trait are different. C. the individual will be phenotypically dominant. D. the individual will be phenotypically recessive. E. both alleles for a given trait are the same and the individual will be phenotypically dominant.

Biology & Microbiology

The coelacanth (Latimeria) is ________

a. an Australian lungfish b. an extinct lobe-finned fish c. the only living lobe-finned fish d. an early amphibian

Biology & Microbiology

An infectious disease with a prevalence greater than expected for a population is said to be ____

a. sporadic b. endemic c. an epidemic d. a pandemic

Biology & Microbiology

Which of the following changes take place as the muscle contracts?

A) The Z lines get closer together. B) The H zones get smaller. C) The I band gets smaller. D) The A band gets smaller. E) A, B, and C are correct.

Biology & Microbiology