Although they are not native to the United States, honeybees have successfully competed for resources with native bees and other pollinator species by ___
a. colonizing new habitats
b. feeding year-round in warmer climates
c. feeding on a wide variety of flowers
d. all of the above
e. non of the above
Answer: d. all of the above
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A mutagen that inserts between the stacked bases of a DNA double helix, distorting the DNA to induce single-pair insertions or deletions is called a(n) ________ agent.
A. intercalating B. insertional C. distortional D. interspersing
Baby frog #1 is homozygous for a mutant allele of gene B (allele b1). Compare the DNA sequence from baby frog #1 with the wild-type sequence to determine how allele b1 is different from the wild-type. What effect does the mutation in allele b1 have on the protein?
A) Allele b1 has a frameshift mutation—a deletion of one nucleotide resulting in a frameshift that changes all amino acids from that point on.
B) Allele b1 has a deletion of one nucleotide outside of the coding region and there is not effect on the protein.
C) Allele b1 has a missense mutation—a nucleotide substitution that changes one amino acid to another.
D) Allele b1 has a nonsense mutation—a nucleotide substitution that forms a stop codon.
E) Allele b1 has a nucleotide substitution that does not change the protein.
Why do scientists favor the clade in which derived traits evolve the fewest times? What will be an ideal response?
____________________ is the branch of genetics that is used to map genes and study chromosome structure and abnormalities in chromosome number and organization
Fill in the blank(s) with correct word