Short index fingers (shorter than the ring finger) are
dominant in males and recessive in females, whereas
long index fingers (as long as or longer than ring
fingers) are dominant in females and recessive in
males. Give the F2 genotype and phenotype resulting
from the cross of a male with long index fingers with
a female with short index fingers. What will be an ideal response?
Answer: F2: 3/4 males with short fingers, 1/4 males with long fingers
F2: 3/4 females with long fingers, 1/4 females with short
fingers
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The first organisms
a. had to be aerobic. b. were pathogenic. c. had to be anaerobic. d. were heterotrophs. e. were multi-celled
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Answer the following statement true (T) or false (F)