Maintenance of the normal quantity of chromosomes, Biology

Assignment Help:

Q. Why is meiosis significant for the maintenance of the normal quantity of chromosomes of a species with sexual reproduction?

A reduction to a half of the maximum normal quantity of chromosomes is compulsory in some phase of the life cycle of a species that reproduces sexually. If that could not occur in each generation, whenever a zygote is formed by fusion of gametes there would be duplication in the quantity of chromosomes in a geometric progression.


Related Discussions:- Maintenance of the normal quantity of chromosomes

What are the advantages of grains, What are the Advantages of Grains D...

What are the Advantages of Grains Diabetics should have more grains, beans and starchy vegetables every day. Whole-\ grain foods are nutritious and high in fiber, such as whol

What is circulation, What is circulation? Circulation is the movement o...

What is circulation? Circulation is the movement of substances as nutrients and gases within blood vessels and cavities all by the organism.

Adverse effects of air pollution, Air pollution affects both living and non...

Air pollution affects both living and non-living matter. The effects can be classified as.

What are some evolutionary advantages of animals, What are some evolutionar...

What are some evolutionary advantages of animals with complete digestive tube? The complete digestive tube permits animals to continuously feed themselves without waiting for r

TISSUES, HOW TO WRITE A CONCLUSION ON A ASSIGNMENT OF EPITHELIAL TISSUES

HOW TO WRITE A CONCLUSION ON A ASSIGNMENT OF EPITHELIAL TISSUES

Explain about folic acid, Explain about Folic acid Folic acid occurs as...

Explain about Folic acid Folic acid occurs as a yellow or orange-yellow, microcrystalline powder, almost without odour and taste. Water content of folic acid is up to 8.5%. Fol

What are cell movements, Cell movements are movements performed by cell str...

Cell movements are movements performed by cell structures, like the movements of cilia and flagella, the pseudopod movements (in amoeba, macrophages, etc.), the cyclosis of the cyt

How different are pteridophytes from bryophytes, Q. How different are pteri...

Q. How different are pteridophytes from bryophytes regarding substance transport? Pteridophytes are tracheophyte (vascular) plants that are they have tissues specialized in con

Does mitosis properly occur before or after the interphase, Does mitosis pr...

Does mitosis properly occur before or after the interphase? Is it a mere "point of view" issue? Mitosis must be considered a succeeding phase after interphase since this

What is the excitation threshold of a neuron, What is the excitation thresh...

What is the excitation threshold of a neuron? How does this threshold relate to the "all-or-nothing" rule of the neural transmission? The excitation threshold of a neuron is th

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