In summer they're cooler and during winter they're warmer
Answer:
Explanation:
Meiosis is a form of cell division that occurs in the sex cells of organisms. It ensures the reduction of a diploid cell to an haploid cell to allow for the formation of a diploid zygote after fertilization (contribution of both parents haploid sex cells to give a diploid zygote). Thus, this process is very essential and important.
The reduction is accomplished by 2 divisions after the duplication of chromosomes
- first division: separation of homologous pairs of chromosomes (this reduces the total in half)
- second division: separation of sister chromatids of a chromosome.
The rearrangement in meiosis occurs by crossing over/genetic recombination.
This is the exchange of genetic material between homologous pairs of chromosome bringing about a rearrangement and genetic variation
An example of a chromosomal abnormality that arises as a result of defects in this process is the Down Syndrome which is caused by a nondisjunction of the chromosomes 21 pair in a sex cell.
This condition produces offsprings that have some characteristic facial features, short stature etc
Answer:
What is the largest sediment that can be transported by a stream that has a velocity of 50 cm/sec?What is the largest sediment that can be transported by a stream that has a velocity of 50 cm/sec?
Sand is the only sediment that could be transported at that velocity as others are heavy to be transported with the mentioned velocity
Explanation:
Answer:
<h3>Expecting you are from India or any cold countries,just bath in ice cold water and and dry yourself as many time you can until you feel dizzy or feverish. </h3>
Explanation:
<h3>I hope l helped you ❤❤</h3>