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No, tips of homologous chromosomes cross over in Meiosis I. There are no homologous chromosomes by Meiosis I.
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The second meiotic division is essentially a mitotic division except for the fact that the cells produced are?
Haploid
What feature of the chromosome complement is reduced int the first meiotic division and kept equal in the second?
Heterochromatin
How many amoebae will there be after the second division?
in first division there will be two amoeba and then after second division there will be four of them which can be calculated by the formula2n where n is the no. of division
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.
What is the percentage of metric second division?
45%
When does the secondary oocyte complete its second meiotic division to become a mature ovum?
At fertilization the secondary oocyte completes its second meiotic division
The second meiotic division is essentially a mitotic division except for the fact that the cells produced are?
Haploid
When chromosomes fail to separate at either the first or second meiotic division this is known as?
a nondisjunction
What feature of the chromosome complement is reduced int the first meiotic division and kept equal in the second?
Heterochromatin
What is the result of the second meiotic division?
Meiosis II results in four haploid (N) daughter cells.
How many chromosomes will the cell have during late second meiotic anaphase if the diploid chromosome number is 4?
2
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.
How is mitosis different from mitosis?
During meiosis there is pairing between homologous chromosomes for exchange of chromatin material by crossing over and these chromosomes get separated in first stage of meiotic division, thus half of the chromosomes separate at each pole; the second stage of meiosis is more or less similar to mitotic division. At the end of meiosis 4 daughter nuclei are formed whereas in mitosis only 2 daughter nuclei are formed without reduction in the number of chromosomes.
Why is the second meiotic division necessary if the reproduction of chromosome number is accomplished by the first division?
You need the second step to further divide the chromosome into two halves. When that happens the sex cells will have half the chromosomes and when combined with the other sex cell that will produce an individual with one half from the father and one half from the mother.
What is the period of time between the first and second meiotic divisions?
It is called Interkinesis
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).
CGPA 2.36 in Pakistan is first division or second division?
It is second division with C grade
