Abnormal chromosomes used by Stern and others to study crossovers are called
A) molecular markers
B) chiasmata
C) physical markers
D) genetic markers
E) non-disjunction
Correct Answer:
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Q21: Which of the following is usually true
Q23: Individuals heterozygous for the RB+ and RB-
Q26: By definition,a tester is always
A) syntenic
B) recessive
C)
Q27: In Drosophila, the genes y (yellow body)and
Q27: Suppose an individual is heterozygous for two
Q28: Recombination due to crossing over occurs only
Q29: Syntenic genes are
A) always recombinant
B) always unlinked
C)
Q30: Which of the following was useful in
Q36: Suppose an individual is heterozygous for a
Q58: Some of the larger human chromosomes typically
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