Genetic Recombination | MCQs
گیم ٹوجینیسیس کے دوران اس پروگرام کا کیا نام ہے جب کروموسوم کے ٹکڑے صحیح سائٹوں پر دوبارہ مل سکتے ہیں لیکن غلط سرے کے ساتھ؟
A. Deletion
B. None of these
C. Inversion
D. Duplication
Explanation
Inversion occurs when a segment of a chromosome breaks off, reverses its orientation, and reattaches at the same location. This can lead to improper gene alignment but does not involve loss of genetic material like deletion . Show/Hide Explanation
مییوسس پروفیز ون کو کتنے کے سب ڈویژنس میں تقسیم کیا گیا ہے؟
A. Five subdivisions
B. None of these
C. Two subdivisions
D. Three subdivisions
Explanation
Prophase I of Meiosis is divided into five stages: Leptotene, Zygotene, Pachytene, Diplotene, and Diakinesis . These subdivisions are crucial for genetic recombination and chromosome pairing. Show/Hide Explanation
A. Recombination
B. Replication
C. None of these
D. Duplication
Explanation
Crossing over is a form of recombination (or genetic recombination).
It's a type of genetic recombination that occurs during meiosis,
Involving the exchange of genetic material between non-sister chromatids of homologous chromosomes.
This process creates new combinations of alleles, increasing genetic diversity.
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A. non-disjunction
B. Crossing over
C. Recombinant DNA
D. Plasmid
Explanation
The exchange of parts of non-sister chromatids of homologous chromosomes during meiosis is called Crossing over.
During meiosis, homologous chromosomes pair up and "cross over," exchanging genetic material between their non-sister chromatids, resulting in new combinations of alleles.
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