During cleavage, the number of cells _____, while the size of individual cells _____
A) increases; increases
B) increases; decreases
C) decreases; increases
D) decreases; decreases
Answer: B
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Explain why rare recessive alleles are more likely to produce a recessive phenotype as a result of inbreeding
What will be an ideal response?
Shown here is a representation of a portion of a pair of schmoos chromosomes
Crossing over would probably be most frequent between
A) hair and legs.
B) hair and eyes.
C) eyes and legs.
D) eyes and arms.
Which class of hormones produced in the roots of plants promotes cell division and growth and retards the aging of flowers and leaves?
A) gibberellins B) phytochromes C) cytokinins D) ethylene
Identify each of the staining techniques as simple, differential, or special.
A. capsule stain B. acid-fast stain C. crystal violet D. Gram stain E. flagellar stain