Explain sexual reproduction, Biology

Assignment Help:

Explain Sexual Reproduction ?

In most higher organisms, replication occurs by sexual reproduction. Sexual reproduction begins with a process called meiosis. The products of meiosis become eggs, sperm, and other specialized cells, and contain only a haploid set of chromosomes. Fusion of a sperm and an egg produces a zygote, restoring the original chromosome number when DNA from the two nuclei combine.

These resulting diploid zygote cells then undergo the cell division through mitosis to produce a multicellular individual. All human cells and those of most eukaryotes not involved with sexual reproduction contain two sets of of chromosomes, one derived from the female parent and the other derived from the male.

During the process of meiosis, exchange of genetic material, or genetic recombination occurs. Genetic recombination leads to diversity in species and an increase in likelihood that new generations will survive in a changing environment.

 


Related Discussions:- Explain sexual reproduction

phylum , characters of phylum rynchocephali

characters of phylum rynchocephalia

How do genetic mutations influence biological diversity, How do genetic mut...

How do genetic mutations influence biological diversity? Too frequent or too extensive genetic mutations usually are deleterious for individuals and species. These mutations fr

State about dental implant reconstruction, State about Dental implant recon...

State about Dental implant reconstruction Dental implant reconstruction requires a thorough knowledge and understanding of the various strategically important anatomic landmark

Explain nucleotides, Nucleotides Compounds  consisting of a  nitrogenou...

Nucleotides Compounds  consisting of a  nitrogenous  base,  a  pentose sugar and a phosphate group.

How neural impulse is transmitted from one cell to another, Q. What is the ...

Q. What is the structure through which the neural impulse is transmitted from one cell to another? What are its parts? The structure through which the neural impulse passes fro

Explain the numerical taxonomy, Explain the Numerical Taxonomy? Numeric...

Explain the Numerical Taxonomy? Numerical methods in taxonomy are not new. Simple statistical methods like standard deviations, t-tests and chi-squared have been used for sever

Excretion, How many kidney in man?

How many kidney in man?

Explain simple sugar, Simple sugars are monosaccharides consisting of a si...

Simple sugars are monosaccharides consisting of a single polyhydroxy aldehyde or ketone unit. Their general formula is (CH 2 0) n (n=3 to 7).

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd