Eggs of frog, Biology

Assignment Help:

EGGS OF FROG

This egg is round & its diameter is of 1-2 mm.

It is mesolecithal & has distinct animal pole & vegital pole.

The nucleus is found in the centre of the animal pole & it contains many nucleoli.

The animal pole is pigmented and the vegital pole is light yellow due to presence of the yolk.

The pigmented animal pole provides mimicry and contains melanin pigments.

The egg is covered by a vitelline membrane and jelly coats.

The jelly coats are tasteless & act as bacteriacidial. Hence, the jelly coats provide protection to the egg. The jelly coats keeps the eggs floating on the water.

The forg's egg develops a grey crescent after fertilization. The grey crescent is a future blastopore.


Related Discussions:- Eggs of frog

Oogenesis, Oogenesis  The process of formation of ova in the ovary is c...

Oogenesis  The process of formation of ova in the ovary is called as oogenesis. The germ cells are found in the form of germinal epthelium around the ovary.These cells are d

How do the golgi apparatus act, Q. How do the Golgi apparatus act and the r...

Q. How do the Golgi apparatus act and the rough endoplasmic reticulum in the production and releasing of proteins? The rough endoplasmic reticulum has in its outer membrane man

Morphology, Condensed which is specialised to take part in sexual reproduct...

Condensed which is specialised to take part in sexual reproduction of angiosperm is called

Poverty and malnutrition, Poverty and Malnutrition Poverty and malnutr...

Poverty and Malnutrition Poverty and malnutrition are closely related. As noted before, many elementary aspects of being poor like hunger, inadequate health care, unhygienic l

What do you mean by qrs changes, Q. What do you mean by QRS Changes? Th...

Q. What do you mean by QRS Changes? The total amplitude of the QRS compared with exercise usually decreases near peak workload, as well as the T-wave amplitude, and there is a

What is the type of circulatory system present in arthropods, What is the t...

What is the type of circulatory system present in arthropods? Do these animals have heart and respiratory pigments? In arthropods the respiratory system is open (lacunar). Blo

What are target organs of the hormones, What are target organs of the hormo...

What are target organs of the hormones? Target organs, target tissues and target cells are those exact organs, tissues and cells upon which each hormone acts and makes its effe

Determine the categories of drug and nutrient relationship, Determine the C...

Determine the Categories of Drug and nutrient relationship? Drug and nutrient relationship can be categorized into two aspects: 1. Effect of nutrition on drugs: the influenc

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