Production of sperms is referred as spermatogenesis and production of ovum or egg is called oogenesis. Spermatogenesis and oogenesis are similar in a way in humans as bth these processes produce large numbers of sperms and eggs. Spermatogenesis is a continuous process where large numbers of sperms are produced at once and uses less energy. Ovulation is a process where only one egg or ovum matures at a time requires more energy. Not all the egg cells mature in females.
Answer:
See below
Explanation:
A. centromeric regions from mother in one cell: 23
total number of centromeric regions in one cell: 46
for every centromeric region that is inherited by the gamete, there is a 0.5 probability that it is from the mother. Hence, if all are from the mother:
0.5 ^ 23 = 1.19 x 10^(-7)
B. Heterozygous for 2000 genes means 4000 possible alleles.
2 ^ 4000 = 1.3 x 10^(1204)
C. 2 ^ 46 = 7.03 x 10^(13)
<h2>
Answer:</h2>
<u>B. Spores</u> are involved in both sexual and asexual reproduction.
<h2>
Explanation:</h2>
In science, a spore is a unit of sexual as well as asexual proliferation that might be adjusted for dispersal and for endurance, frequently for expanded timeframes, in troublesome conditions.
Bacterial spores are not part of a sexual cycle but rather are safe structures utilized for endurance under horrible conditions. Under good conditions, the spore can form into another living being utilizing mitotic division, delivering a multicellular gametophyte, which inevitably proceeds to create gametes.
The answer is cytoplasm
cytoplasm is a gel in the cell and contains the cells organelles :)))
i hope this is helpful
have a nice day
Answer:
DNA segments are exchanged between two non-sister chromatids during meiosis I.
Explanation:
An exchange of chromosome segments or parts between non-sister homologous chromatids occurs which is also called crossing over. This crossing over occurs in the meiosis I that is responsible for the variation in the offspring produced. The formation of hybrid species occurs due to this exchanged of DNA segments between two non-sister chromatids.
