Which of the following is not true of homologous recombination? Only occurs between regions of DNA sharing >50 basepairs of n

Question

3 years ago

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Which of the following is not true of homologous recombination? Only occurs between regions of DNA sharing >50 basepairs of n

early identical sequence. Can repair a collapsed replication fork. Always accompanied by some loss of DNA sequence. Responsible for crossing over at meiosis. Can repair a double-stranded break in chromosomal DNA.

Biology

1 answer:

Sphinxa [80] · Answer 1 · 2022-07-05T15:29:35+03:00

<h2>Recombination </h2>

Explanation:

Always accompanied by some loss of DNA sequence is not true of homologous recombination

Homologous recombination is a type of genetic recombination which requires homology between two DNA molecules
Single stranded break occurs in same position of both DNA, after that strand invasion occurs
Each invading strand joins to the broken end of other DNA molecule, creating a Holliday junction
Holliday junction predicts cross over or non cross over recombinant DNA, depends on whether cleavage is on vertical or horizontal plane
Cleavage in vertical plane produces cross over recombinant consisting of two heteroduplex DNA