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Multiple Choice
Genetically recombinant progeny contain which of the following?
A
Identical alleles from both parents
B
New combinations of alleles due to crossing over
C
A complete set of chromosomes from one parent
D
Only dominant alleles from one parent
Verified step by step guidance
1
Understand the concept of genetic recombination: Genetic recombination occurs during meiosis when homologous chromosomes exchange genetic material through a process called crossing over. This results in new combinations of alleles in the progeny.
Identify the role of crossing over: During meiosis, specifically in prophase I, homologous chromosomes pair up and exchange segments of DNA. This process creates genetic diversity by producing new combinations of alleles.
Analyze the options given: Evaluate each option to determine which one correctly describes the outcome of genetic recombination.
Option 1: 'Identical alleles from both parents' - This is incorrect because genetic recombination results in new combinations, not identical alleles.
Option 2: 'New combinations of alleles due to crossing over' - This is correct as it accurately describes the result of genetic recombination.