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

Digestive system, Digestive system is one of eleven major body organ syste...

Digestive system is one of eleven major body organ systems in animals; it converts food from the external environment into the nutrient molecules which can be used and stored by t

Explain protostomes vs. deuterostomes breifly, Explain Protostomes vs. Deut...

Explain Protostomes vs. Deuterostomes breifly? Branching Evolutionary Lines : It appears that the Coelomate animals separated into two divergent lines of evolution in terms o

Bluetongue, B l u e t on g u e Bluetongue (BT) is a non-contagi...

B l u e t on g u e Bluetongue (BT) is a non-contagious and arboviral disease of both domestic and wild ruminants. The disease is enzootic in areas where reservoirs (cat

Ph of food in pectic ulcer, Q. PH of food in pectic ulcer? PH of food: ...

Q. PH of food in pectic ulcer? PH of food: It has. a little therapeutic importance except for patients with lesions in the mouth or oesophagus. Most foods are considerably les

List the goals of management of type 1 diabetes mellitus, Q. List the goals...

Q. List the goals of management of Type 1 Diabetes Mellitus? Goals of management of Type 1 Diabetes Mellitus: a) to keep blood sugar level as close to normal as possible.

What is the axes of fick, What is the Axes of Fick The Axes of Fick sho...

What is the Axes of Fick The Axes of Fick show that any eye position can be specified as the amount of rotation around a set of axes fixed in the orbit: 1) Vertical Axis: Z-

Body fluids – circulation, Normal 0 false false false E...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

What is aortic enlargement, Q. What is Aortic Enlargement ? Ascending ...

Q. What is Aortic Enlargement ? Ascending Aorta: The ascending aorta, along with the SVC forms a portion of the right cardiac border on the PA view. After the age of about 40

How b and t cells recognize antigen are true explain, Which of the followin...

Which of the following statements about how B and T cells recognize antigen are true? a. B cells only recognize antigen presented by class I or class II MHC molecules. b. Both cell

Different stages involved in feeding patient - peptic ulcer, Q. Different s...

Q. Different stages involved in feeding patient - peptic ulcer? Stage I: It is characterized by haematemesis (vomiting of blood which may be derived from mouth, stomach, oesoph

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