Meiosis occurs when a parent cell divides to produce 4 daughter cells with half the original genetic content in order to produce gametes. This is different than mitosis (or mitotic cell division), where the par
题目What is the main purpose of mitosis? A. Genetic variation B. Production of gametes C. Growth and repair D. Reduction of chromosome number 相关知识点: 试题来源: 解析 C。原因:有丝分裂的主要目的是生长、修复和无性繁殖。反馈 收藏
The establishment of successful interspecies hybrids requires restoration of a stable “2n” chromosome complement which can produce viable “n” gametes. This may occur (rarely) via recombination between non-homologous chromosomes, or more commonly is a
Where does mitosis and meiosis occur in an amoeba? What must happen before meiosis can begin? Haploid cells are formed How do somatic cells get created from the gametes? How does plant sperm reach the ovule from the stigma? What is female sperm called?Explore...
How do gametes differ chromosomally from somatic cells? How is meiosis related to gamete formation? How is self-fertilization different from asexual reproduction? How does a zygote differ from a daughter cell produced in mitosis of the mother?
In C. elegans gonads, germ cell mitosis is restricted to the distal region, near the stem cell niche (the DTC). In contrast, in R. sp. SB347, mitotically dividing MSP(-) cell clusters were observed along the length of the gonad, including positions physically distant from the stem cell...
Explore related subjects Discover the latest articles and news from researchers in related subjects, suggested using machine learning. Aneuploidy Centromeres Meiosis Plant Genetics Quantitative trait loci Introduction Unreduced gametes, also known as 2n gametes, are gametes with a diploid (2n) rather ...
From the second to the fifth month of pregnancy, the number of oogonia (egg-forming cells) in the ovaries increases by mitosis from a few thousand to about seven million. After that, the number of egg-forming cells progressively decreases through a natural degenerative process called atresia ...
The maturation process through which spermatids become spermatozoa is called ___. (a) spermiogenesis (b) spermatogenesis (c) meiosis (d) mitosis. Site of implantation of an embryo, development of the fetus during pregnancy and labor: ___ Gametes...
By comparison, during mitosis in diploid cells, chromosomes replicate and sister chromatids segregate to generate daughter cells that are diploid (2n) and genetically identical to the initial cell. Abnormal gametes resulting from anomalies during meiosis have been shown to be useful for the genetic ...