Which of the following statements below is false?
A) At meiosis I, the X and Y chromosomes line up as if they were homologs.
B) Normally in humans, all the sons of a male showing an X-linked phenotype will inherit the trait.
C) Normally in humans, a male that is carrying an X-linked dominant trait will pass it to all his daughters.
D) Normally in humans, all the sons of a female homozygous for an X-linked recessive gene will inherit that trait.
E) Normally in humans, females are carriers of X-linked recessive traits if they are heterozygous.
Answer: B
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The phenomenon where one species diverges into many by occupying a different habitats within a region is called __________ _________.
Fill in the blank(s) with the appropriate word(s).
Bacteroids are terminally differentiated-they can neither divide nor revert back to the nondifferentiated state.
Answer the following statement true (T) or false (F)
Cellular respiration occurs in two main parts, glycolysis and aerobic respiration. What are the reactants needed for aerobic respiration in eukaryotic cells?
A) lactic acid and oxygen B) glucose and water C) glucose and oxygen D) carbon dioxide and water
Molecular/structural orientations (gradients) in an egg are thought to play a significant role in development. What evidence indicates that the maternal genotype is involved in providing such gradients?
A) Snail shell's coil based on environmental conditions. B) Results (non-Mendelian) indicate that the direction of shell coiling in snails is determined by the genotype of the mother, not the genotype of the zygote. C) Results indicate that the snail shell coiling is passed exclusively from the mother. D) The snail's father's genotype dictates the next generation's phenotype. E) The snail shell coiling depends on the genotype of the mother and the offspring.