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This quiz contains 14 questions from a mix of 1 subtopics.
What are autosomes?
chromosomes that determine the sex of an organism
chromosomes that do not determine the sex of an organism
genes that determine the sex of an organism
genes that do not determine the sex of an organism
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What does it mean when genes are described as linked?
they are located on different chromosomes
they are located on the same chromosome and tend to be inherited together
they have no influence on inheritance patterns
they are located on the same chromosome and tend to be inherited separately
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What is the effect of autosomal linkage on inheritance?
it results in a random association of alleles at different loci
it results in independent assortment of alleles
it results in a higher number of recombinant offspring
it results in a non-random association of alleles at different loci
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What does the preservation of parental allele combinations across generations indicate?
there is a high degree of autosomal linkage
there is a high degree of crossing over
the genes are located very far from each other on the chromosome
there is no autosomal linkage
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What is the effect of crossing over on linked genes?
it brings them closer together on the chromosome
it has no effect on their inheritance
it increases the likelihood of mutations
it can separate them, creating new combinations of alleles
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What does a low number of recombinant offspring indicate?
there is a high degree of autosomal linkage
there is no autosomal linkage
the genes are located very far from each other on the chromosome
there is a high degree of crossing over
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How does autosomal linkage affect genetic variation in offspring?
it increases genetic variation by producing a high number of recombinant offspring
it increases genetic variation by preserving parental allele combinations
it has no effect on genetic variation
it decreases genetic variation by producing a low number of recombinant offspring
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What does the term 'chiasmata' refer to?
regions where crossing over occurs
regions where genes are not linked
regions where genes are linked
regions where mutations occur
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What is the term for offspring that have different combinations of alleles from their parents due to crossing over?
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What is the recombination frequency?
a measure of how often parental phenotypes are preserved
a measure of how many genes are located on a chromosome
a measure of how often recombinant offspring are produced as a result of crossing over
a measure of how often mutations occur in offspring
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What does a 50% recombination frequency indicate?
the genes are located close to each other on the chromosome
there is a strong linkage between the genes
the genes are located very close to each other on the chromosome
there is no linkage between the genes
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What does a recombination frequency below 50% signify?
the genes are located on different chromosomes
there is some degree of autosomal linkage
the genes are located very far from each other on the chromosome
there is no linkage between the genes
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What is the purpose of calculating the recombination frequency?
to determine the relative positions of genes on chromosomes
to determine the sex of an organism
to determine the phenotypic ratios of offspring
to determine the likelihood of mutations
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What does a recombination frequency of 16% indicate?
the genes are located very close together on the chromosome
the genes are located very far from each other on the chromosome
the genes are not linked
there is a high degree of crossing over
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