If short hair (L) is dominant to long hair (l), animals
LL and Ll have the same
a. parents.
b. genotypes.
c. phenotypes.
d. alleles.
e. genes.
Answer: c
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Analyzing DNA sequences in different populations provided us with what new information?
A. that the bonobo and chimpanzee are two different species B. that the gorilla is more closely related to humans than the orangutan C. that the chimpanzees are more closely related to humans than gorillas are D. that Old World monkeys are separate from the Apes E. None of the answer options is correct.
Studies have shown that in the flowering plant Arabidopsis whether or not a root epidermal cell develops a root hair is
determined ____.
a. by the distance of the cell from the root tip b. from the timing of cell division c. by positional information from cells of the root cortex d. shortly after the eight-cell embryo stage e. by the direction of cell division
Members of the phylum ____ are considered by many researchers to be the living plants most closely
related to the first land plants, based on their morphology and mitochondrial gene sequence data.
a. Hepatophyta b. Pterophyta c. Bryophyta d. Lycophyta e. Anthocerophyta
The HPA axis is activated by the (A)_______. On the other hand, it is suppressed by the (B)_______ in response to the level of cortisol in the blood, which is detected by the (C)_______.
a. (A) amygdala, (B) hippocampus, (C) CRH receptor b. (A) hippocampus, (B) amygdala, (C) glucocorticoid receptor c. (A) amygdala, (B) hippocampus, (C) glucocorticoid receptor d. (A) hippocampus, (B) amygdala, (C) CRH receptor