A reproductive cell, or gamete, has:
A. one allele for each gene.
B. two alleles for each gene.
C. one allele for each gene if it is
homozygous and two if it is heterozygous.
D. one allele for each gene if it is truebreeding
and two if it is an F1 offspring.
E. between one and four alleles for each
gene.
A
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The proteome represents _____, while the cellular proteome represents _____
a. all of the proteins able to be made by all living organisms; the proteins made by unicellular organisms b. the set of proteins made by any multicellular organism; the set of proteins made by unicellular organisms c. all of the proteins able to be expressed by an organism’s genome; the subset of proteins found in a particular cell type d. all of the proteins that are common to all living organisms; the proteins found in the same cell types of different species e. the subject of proteomics research; the subject of phenomics research
What initiates T cell activation?
What will be an ideal response?
The atomic mass (mass number)of an atom is
determined by the combined masses of its a. neutrons and protons. b. neutrons and electrons. c. protons and electrons. d. protons, neutrons, and electrons. e. neutrons, nucleus, and electrons.
Why are there fewer tRNA anticodons than the 61 needed to match each mRNA codon that codes for an amino acid?
A. There is some flexibility in pairing between the 5' base of the codon and the 3' base of the anticodon. B. There is some flexibility in pairing between the middle base of the codon and the middle base of the anticodon. C. There is some flexibility in pairing between all 3 bases of the codon and all 3 bases of the anticodon. D. There is some flexibility in pairing between the 3' base of the codon and the 5' base of the anticodon.