The two amino acids depicted above both have side groups (R groups) that are
a. acidic and polar.
b. uncharged and nonpolar.
c. basic and polar.
d. positively and negatively charged and nonpolar.
e. uncharged and polar.
E
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If tall (D) is dominant to dwarf (d), and two homozygous varieties DD and dd are crossed, then what kind of offspring
will be produced? a. all intermediate forms b. all tall
c. all dwarf d. 1/2 tall, 1/2 dwarf e. 3/4 tall, 1/4 dwarf
Identify and briefly explain the four premises of evolution by natural selection, as proposed by Charles
Darwin. What will be an ideal response?
The first type of symmetry to develop, and seen in cnidarians, was
A. radial symmetry. B. contralateral symmetry. C. bilateral symmetry. D. medial symmetry.
A human egg contains:
A) 22 autosomes and one X chromosome. B) 22 autosomes and an X or a Y chromosome. C) 23 autosomes and an X or a Y chromosome. D) 46 chromosomes, as 23 pairs. E) 22 pairs of autosomes and two X chromosomes.