Question

answer the following questions after reading this passage.production of gametes by meiosisgametes are sex cells that are produced by meiosis. unlike mitosis which results in the production of two daughter cells, four gametes are produced from a single meiotic division. the number of chromosomes present in gametes is half that of the number of chromosomes present in the organism.in organisms that reproduce sexually, two sets of chromosomes are present. one set is contributed by the mother while the other set is contributed by the father. together, the pair of chromosomes form a homologous pair.during production of gametes via meiosis, crossing over results in the exchange of genetic information between homologous chromosomes. the regions at which the two chromosomes overlap and remain in contact during crossing over is called the schismatic. as a result of crossing over, new types of recombination chromosomes are formed and passed on to gametes. the figure shows crossing over between a pair of homologous chromosomes.7 how many recombinant chromosomes are produced by meiosis in the figure shown?a 8b 0c 4d 2

Explanation:

Recombinant chromosomes are the ones with mixed genetic material from homologous pairs after crossing over. Looking at the final gamete chromosomes:

1. Chromosome with B and A: non-recombinant (matches original parent)
2. Chromosome with b and A: recombinant (mixed b from purple, A from blue)
3. Chromosome with B and a: recombinant (mixed B from blue, a from purple)
4. Chromosome with b and a: non-recombinant (matches original parent)

Counting these, there are 2 recombinant chromosomes.

Answer:

D. 2