Meiosis, or reductional division, is a process during which exchange of genetic material between the homolog chromosomes (crossing-over and recombination) takes place and such a division of the genetical material occurs the four daughtercells
have received each only one set of chromosomes (they are haploid, in
contrast to the mother cell which contained homolog chromosomes and was
diploid)
<span>have each a distinct genetical composition, also different from that of the parental cell.
Meiosis is divided into twofases: meiosis I and meiosis II.
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Answer:
Blastocyst is an early embryonic stage in mammals otherwise it is a blastula which is followed by development of gastrula. Blastocyst is a hollow ball like structure that develops by repeated cell division from zygote . It is superficially covered by a layer of cells collectively termed trophoblast.
Explanation:
Answer:
(A)
Explanation:
The state are defined by whether they a set size, set shape, neither or both
Answer:
-- individual damaged nucleotides that minimally impact the helix structure.
-- single stranded breaks
Explanation:
The Base excision repair is popularly known as the BER. It is defined as the cellular mechanism which repairs the DNA that are damaged throughout the cell cycle. It helps in correcting the the small base lesions which do not distort the helix structure of the DNA significantly. It is also responsible for fixing the single stranded breaks of the DNA.
