Answer: a specific protein
Explanation:
<span>Mitosis is the cell division that happens to replace old cells with new ones.
Describing how is the cells group is the process of multiplication of cell or the so-called cell division, mitosis. This
mechanism of each cell produces another cell that binds together and
produces again, repeatedly, to be a larger system called now the tissue
as explained earlier.How? Through cell division called, mitosis. Excerpt meiosis –cell division specifically in the sex cells.<span>
They are labelled as daughter cells. </span></span>
Replication it shows the production of identical copies of DNA and Transcription transfer the coded message for protein synthesis from DNA onto mRNA
The answer should be A. Active transport
Answer:
Genes coding for proteins involved in chiasma formation.
Explanation:
Chiasma is the connecting link between two non sister chromatids from homologous chromosomes. At chiasma chromosomal crossover takes place in which the genetic material is exchanged between the chromatids. During meiosis aneuploidy occurs if chiasma is absent or impaired due to a mutation in genes encoding for proteins involved in chiasma formation.
Aneuploidy is characterised by presence of abnormal number of chromosomes in cells. They can be 45 or 47 in number apart from the usual 46. Due to impaired chiasma, chromosome pair fails to separate and is passed on to the egg or sperm as it is hence there is one gamete with an extra chromosome and one gamete with a less chromosome. Aneuploidy can result in many genetic disorders like three copies of chromosome 21 can result in Down syndrome.
