If an embryo doesn't have an exact multiple of the normal haploid number of 23 chromosomes, the
condition is known as
a. aneuploidy.
b. diploidy.
c. ahaploidy.
d. multiploidy.
e. synploidy.
A
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Identify the rule(s) that was/were correctly applied in producing this cladogram.
A. All of the answer choices are correct. B. Derived characters, proposed to have developed after common ancestry, were tallied for each species (group). C. Species (groups) pairs that shared most derived characters were shown to branch from common ancestors at nodes. D. Nodes and branches interpreted as more recently derived from common ancestors were shown farther from the root. E. Coelophysis (at top) was selected as an outgroup representative, sharing all features assumed to be ancestral.
During chemiosmosis, what must be transferred from NADH and FADH2 to electron acceptor molecules?
a. protons b. electrons c. ATP molecules d. ADP molecules e. water molecules
Which choice lists all of the major minerals, and NO trace minerals?
a. calcium, iron, phosphorus, sulfur, sodium, manganese, and potassium b. calcium, sodium, potassium, phosphorus, sulfur, magnesium, and chloride c. calcium, manganese, phosphorus, sulfur, sodium, chloride, and potassium d. calcium, magnesium, iron, phosphorus, sodium, chloride, and potassium
Widow's-peak hairline in humans is dominant to non-widow's-peak hairline. If a person has a widow's-peak hairline, what is his or her genotype?
A) The genotype is either heterozygous or homozygous dominant. B) The genotype is either homozygous dominant or homozygous recessive. C) The genotype must be homozygous recessive. D) The genotype must be homozygous dominant. E) The genotype must be heterozygous.