BYUI UNIT 2 GENETICS BIO 2025
181
ANSWER ALL QUESTIONS IN THIS SECTION
QUESTION 1
Nondisjunction - ANSWERS-the failure of synapsed homologs to completely
separate and migrate to separate poles during the first cell division of meiosis
QUESTION 2
nonparental (recombinant) type - ANSWERS-progeny resulting from homologous
recombination that exhibits a different allele combination compared with its
parents
QUESTION 3
paracentric - ANSWERS-inversion that occurs outside of the centromere
QUESTION 4
parental types - ANSWERS-progeny that exhibits the same allelic combination as
its parents
END OF
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181
QUESTION 5
pericentric - ANSWERS-inversion that involves the centromere
QUESTION 6
polyploid - ANSWERS-individual with an incorrect number of chromosome sets
QUESTION 7
recombination frequency - ANSWERS-average number of crossovers between two
alleles; observed as the number of nonparental types in a population of progeny
QUESTION 8
Translocation - ANSWERS-process by which one segment of a chromosome
dissociates and reattaches to a different, nonhomologous chromosome
QUESTION 9
END OF
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181
Trisomy - ANSWERS-otherwise diploid genotype in which one entire
chromosome is duplicated
QUESTION 10
X inactivation - ANSWERS-the condensation of X chromosomes into Barr bodies
during embryonic development in females to compensate for the double genetic
dose
QUESTION 11
Electrophoresis - ANSWERS-technique used to separate DNA fragments
according to size
QUESTION 12
Helicase - ANSWERS-during replication, this enzyme helps to open up the DNA
Helix by breaking the hydrogen bonds
QUESTION 13
induced mutation - ANSWERS-mutation that results from exposure to chemicals
or environmental agents
END OF
PAGE 3
181
ANSWER ALL QUESTIONS IN THIS SECTION
QUESTION 1
Nondisjunction - ANSWERS-the failure of synapsed homologs to completely
separate and migrate to separate poles during the first cell division of meiosis
QUESTION 2
nonparental (recombinant) type - ANSWERS-progeny resulting from homologous
recombination that exhibits a different allele combination compared with its
parents
QUESTION 3
paracentric - ANSWERS-inversion that occurs outside of the centromere
QUESTION 4
parental types - ANSWERS-progeny that exhibits the same allelic combination as
its parents
END OF
PAGE 1
, BYUI UNIT 2 GENETICS BIO 2025
181
QUESTION 5
pericentric - ANSWERS-inversion that involves the centromere
QUESTION 6
polyploid - ANSWERS-individual with an incorrect number of chromosome sets
QUESTION 7
recombination frequency - ANSWERS-average number of crossovers between two
alleles; observed as the number of nonparental types in a population of progeny
QUESTION 8
Translocation - ANSWERS-process by which one segment of a chromosome
dissociates and reattaches to a different, nonhomologous chromosome
QUESTION 9
END OF
PAGE 2
, BYUI UNIT 2 GENETICS BIO 2025
181
Trisomy - ANSWERS-otherwise diploid genotype in which one entire
chromosome is duplicated
QUESTION 10
X inactivation - ANSWERS-the condensation of X chromosomes into Barr bodies
during embryonic development in females to compensate for the double genetic
dose
QUESTION 11
Electrophoresis - ANSWERS-technique used to separate DNA fragments
according to size
QUESTION 12
Helicase - ANSWERS-during replication, this enzyme helps to open up the DNA
Helix by breaking the hydrogen bonds
QUESTION 13
induced mutation - ANSWERS-mutation that results from exposure to chemicals
or environmental agents
END OF
PAGE 3
