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Match Each Description with the Appropriate Term Concerning Sources of New

Question 40

Matching

Match each description with the appropriate term concerning sources of new genetic variations in populations.

Premises:
Exons of preexisting genes are rearranged to make a new combination
Genes from one species introduced into another species
Recombination to produce new combinations of alleles
Increase or decrease in the number of repetitive sequences
Production of hybrid offspring
Independent segregation of different homologous chromosomes gives rise to new combinations of alleles
Chromosome structure changed by deletion, duplications, inversions, translocations or there is a change in ploidy
Conjugation, transduction and transformation
Point mutations, small deletions and insertions
Additional copies of a gene occur through misaligned crossing over
Responses:
interspecies crosses
gene duplications
horizontal gene transfer
independent assortment
exon shuffling
new alleles
chromosome structure and number
crossing over
prokaryotic gene transfer
changes in repetitive sequences

Correct Answer:

Exons of preexisting genes are rearranged to make a new combination
Genes from one species introduced into another species
Recombination to produce new combinations of alleles
Increase or decrease in the number of repetitive sequences
Production of hybrid offspring
Independent segregation of different homologous chromosomes gives rise to new combinations of alleles
Chromosome structure changed by deletion, duplications, inversions, translocations or there is a change in ploidy
Conjugation, transduction and transformation
Point mutations, small deletions and insertions
Additional copies of a gene occur through misaligned crossing over
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