0
Why are germ cells diploid prior to their first meiotic division?
Wiki User
∙ 9y ago
Germ cells diploid prior to their first meiotic division as a means to produce homologous chromosomes , or homologs
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
Is disploid the second stage of meiotic division?
The diploid is the first stage. The diploid will duplicate one time and then divide twice and create four haploid cells.
Meiosis in the male mammals result in the formation of?
The primary spermatocyte is diploid(2n) and after first meiotic division it will produce 2 haploid(n) secondary spermatocyte and these in turn after second meiotic division will produce 2 more haploid secondary spermatocyte. Therefore by the end of Meiosis one will have 4 haploid secondary spermatocyte or spermatids.
How many chromosomes will be in a daughter cell after meiosis?
Meosis is called a reductional division. This means the daughter cells in a meotic cell division have half the number of chromosomes as the parent cell. Parent cell (2n) ------> Meotic cell division ------> 2 daughter cells (n)
When chromosomes fail to separate at either the first or second meiotic division this is known as?
a nondisjunction
What type of cell division produce the sperm and egg cell?
it is formed by meiosis. At first the spermatazoa go through mitosis making two spermatocytes. which then goes through meiosis producing 4 spermatids which then go through spermogenisi n make 4 sperm cells
Is disploid the second stage of meiotic division?
The diploid is the first stage. The diploid will duplicate one time and then divide twice and create four haploid cells.
Meiosis in the male mammals result in the formation of?
The primary spermatocyte is diploid(2n) and after first meiotic division it will produce 2 haploid(n) secondary spermatocyte and these in turn after second meiotic division will produce 2 more haploid secondary spermatocyte. Therefore by the end of Meiosis one will have 4 haploid secondary spermatocyte or spermatids.
What is produced from diploid germ cells by meiosis?
4 Haploid gametes. In Meiosis, germ cells first undergo a mitosis like division which produces 2 diploid germ cells. After that division, they undergo a second division in Meiosis 2, without first replicating their chromosomes. The end result is 4 haploid gametes.
What is the function of spermatogenic cells?
The male testes have tiny tubules containing diploid cells called spermatogonium that mature to become sperm. The basic function of spermatogenesis is to turn each one of the diploid spermatogonium into four haploid sperm cells. This quadrupling is accomplished through the meiotic cell division detailed in the last section. During interphase before meiosis I, the spermatogonium's 46 single chromosomes are replicated to form 46 pairs of sister chromatids, which then exchange genetic material through synapsis before the first meiotic division. In meiosis II, the two daughter cells go through a second division to yield four cells containing a unique set of 23 single chromosomes that ultimately mature into four sperm cells. Starting at puberty, a male will produce literally millions of sperm every single day for the rest of his life.
The first meiotic division of an immature egg occurs during the?
During the follicular phase an immature egg completes its first meiotic division. A follicle is a small, narrow cavity or sac in and organ or tissue.
What is oogenessis?
This is the process by which eggs (ova) are made.It begins with the primordial germ cells (also called oogonium) which are diploid (have the full set of paired chromosomes). They divide by mitosis to produce primary oocytes. Then a primary oocyte undergoes a first meiotic division creating a secondary oocyte and a first polar body (which dies). Then after the second meiotic division of the secondary oocyte, an ootid (now haploid - i.e. has full set of unpaired chromosomes) results, along with a second polar body (which dies just like the first one). The ootid then develops into an ovum (egg).
How many chromosomes will be in a daughter cell after meiosis?
Meosis is called a reductional division. This means the daughter cells in a meotic cell division have half the number of chromosomes as the parent cell. Parent cell (2n) ------> Meotic cell division ------> 2 daughter cells (n)
When chromosomes fail to separate at either the first or second meiotic division this is known as?
a nondisjunction
Do sperm cells have diploid number?
Gametes are haploid and each contain only one chromosome. When a male and female haploid gamete unite , they create a diploid zygote.
What type of cell division produce the sperm and egg cell?
it is formed by meiosis. At first the spermatazoa go through mitosis making two spermatocytes. which then goes through meiosis producing 4 spermatids which then go through spermogenisi n make 4 sperm cells
How does the arrangement in chromosomes at meta phase differ in mitotic division and the first division?
in meiotic cell division the chromosomes are not aligned in the middle like meta phase.
What feature of the chromosome complement is reduced int the first meiotic division and kept equal in the second?
Heterochromatin
