A cat's scientific name is Felix domesticus, which genus does it belong to ?
a. Cat
b. domesticus
c. Felix
Answer: c. Felix
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Which of the following would tend to increase transpiration?
A) a rainstorm B) sunken stomata C) a thicker cuticle D) higher stomatal density E) spiny leaves
Embryogenesis in plants is about the same process as _____
A) cleavage in animals B) gastrulation in animals C) organogenesis in animals D) cleavage, gastrulation, and organogenesis in animals
Some enzymes build new molecules, and others metabolize or break them down. For example, digestive enzymes such as peptidases and lipases break down proteins and lipids, respectively. Genetic information is encoded in the DNA for proteins, many of which are enzymes. This means that a harmful or lethal genetic mutation often results in a malformed enzyme that cannot function. If a person suffers a mutation that results in malformed peptidase, what problem would you expect them to would have?
a. unable to swallow medication properly b. high body temperature c. unable to digest protein d. unable to metabolize fats
In poultry, the genes for rose comb (R) and pea comb (P) produce walnut whenever they occur
together (R__ P__); single-combed individuals have the homozygous condition for both genes (rr pp). (a) Give the F1 and F2 phenotypic results of a cross of a pure-breeding rose comb (RR pp) with a pure-breeding pea comb (rr PP). (b) Give the phenotypic results of a cross of Rr Pp ? rr Pp. (c) Give the phenotypic results of a cross of RR Pp ? rr Pp. (d) Give the phenotypic results of a cross of Rr pp ? rr Pp. (e) Give the phenotypic results of a cross of Rr Pp ? rr pp. What will be an ideal response?