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BIO 342: Genetics - Exam 2 Miami University Questions with Correct Answers $15.49   Add to cart

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BIO 342: Genetics - Exam 2 Miami University Questions with Correct Answers

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Principle of segregation Correct Answer Alleles separate during meiosis Independent assortment Correct Answer Alleles at one locus sort independently from alleles at another locus Recombination Correct Answer Alleles sort into new combinations Linked genes separate together and crossing...

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  • August 4, 2024
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BIO 342: Genetics - Exam 2 Miami University
Questions with Correct Answers
Principle of segregation Correct Answer ✓✓ Alleles separate during
meiosis


Independent assortment Correct Answer ✓✓ Alleles at one locus sort
independently from alleles at another locus


Recombination Correct Answer ✓✓ Alleles sort into new combinations


Linked genes separate together and crossing over produces
recombination between them Correct Answer ✓✓ linked genes are
found in the same loci of chromosomes


complete linkage leads to noncombinant gametes and noncombinant
progeny


Crossing over leads to ____; if crossing over occurs between two
normally linked loci, they will sort ____ Correct Answer ✓✓
recombination; independently


calculating recombination frequency Correct Answer ✓✓ RF = (#
recombinant progeny / total # of progeny) x 100

, coupling (cis configuration) Correct Answer ✓✓ one chromosome
contains both wild-type alleles, one chromosome contains both mutant
alleles


repulsion (trans configuration) Correct Answer ✓✓ wild-type allele and
mutant allele are found on the same chromosome


genetic maps are determined by ____ Correct Answer ✓✓ recombinant
frequency


genetic map Correct Answer ✓✓ an ordered list of the genetic loci
along a particular chromosome


steps in determining gene order in three-point cross Correct Answer ✓✓
1. identify recombinant progeny (two most numerous phenotypes)


2. identify the double-crossover progeny (two least numerous
phenotypes)


3. compare the phenotypes of double-crossover progeny with the
phenotypes of recombinant progeny - they should be alike in two
characteristics and differ in one


Recombinant frequency allows us to predict ____ for a cross with linked
genes Correct Answer ✓✓ expected offspring

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