A change in a cell's DNA sequence is
A. replication.
B. transcription.
C. a mutation.
D. translation.
E. an operon.
C. a mutation
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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.
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
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
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.