Chapter 13: Q. 7 (page 343)
Which recombination frequency corresponds to perfect linkage and violates the law of independent assortment?
a. 0
b. 0.25
c. 0.50
d. 0.75
Short Answer
The Correct answer is A.
Chapter 13: Q. 7 (page 343)
Which recombination frequency corresponds to perfect linkage and violates the law of independent assortment?
a. 0
b. 0.25
c. 0.50
d. 0.75
The Correct answer is A.
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Get started for freeWhich of the following codes describes position 12 on the long arm of chromosome 13?
a. 13p12
b. 13q12
c. 12p13
d. 12q13
If the allele encoding polydactyly (six fingers) is
dominant why do most people have five fingers?
a. Genetic elements suppress the polydactyl gene.
b. Polydactyly is embryonic lethal.
c. The sixth finger is removed at birth.
d. The polydactyl allele is very rare in the human
population.
The first suggestion that chromosomes may physically exchange segments came from the microscopic identification of ________.
a. synapsis
b. sister chromatids
c. chiasmata
d. alleles
Abnormalities in the number of X chromosomes tends to have milder phenotypic effects than the same abnormalities in autosomes because of _______
a. deletions
b. nonhomologous recombination
c. synapsis
d. X inactivation
Figure Which of the following statements about nondisjunction is true?
a. Nondisjunction only results in gametes with or chromosomes.
b. Nondisjunction occurring during meiosis II results in percent normal gametes.
c. Nondisjunction during meiosis I results in percent normal gametes.
d. Nondisjunction always results in four different kinds of gametes
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