If a pea plant strain is true-breeding for a particular trait, then:
A. crosses between two true-breeding plants with the same trait will have offspring identical to the parents.
B. it will be homozygous for all genes.
C. it must be a recessive trait.
D. it is not useful for studying inheritance.
E. it only self-fertilizes.
A
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A complete virus particle is called a
A. virion. B. nucleocapsid. C. capsid. D. cell.
The phage Mu
A) has a circular genome. B) repairs mutations in the host genome. C) replicates by transposition. D) has a circular genome, repairs host genome mutations, and can replicate by transposition.
Four features help define __________: a notochord,
a dorsal hollow nerve cord, a pharynx with gill slits, and a tail extending past the anus. Fill in the blank(s) with the appropriate word(s).
What are the cellular mechanisms that must fail before a DNA replication error becomes a mutation?
A. translation and transcription B. transcription and proofreading C. proofreading and repair D. replication and translation E. replication and repair