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

Fluids requirement during congestive cardiac failure, Q. Fluids requirement...

Q. Fluids requirement during congestive cardiac failure? Fluids: Fluid intake should be monitored in accordance with urine output and severity of oedema. Fluid restriction is

Myocardial energetics, The oxidation of substrates like free fatty acids (F...

The oxidation of substrates like free fatty acids (FFA), glucose, lactate and ketone bodies results in the energy of Adenosine triphosphate (ATP) and Creatine phosphate (CP). The s

Unitary explanation for protein synthesis, Q. Why is the concept of a singl...

Q. Why is the concept of a single gene as ultimateunit of inheritance inadequate to provide a unitary explanation for protein synthesis, recombination and mutation? Answer:

Nocardiosis, Nocardiosis Nocardiae are aerobic, saprophytic, gram-posi...

Nocardiosis Nocardiae are aerobic, saprophytic, gram-positive, partially acid-fast filamentous bacteria. Currently, there are 30 species included within the genus. Members of

Nutrition, define alimentary canal

define alimentary canal

Regeneration in hydra, Regeneration in Hydra You previously know that...

Regeneration in Hydra You previously know that the Hydra has spectacular regenerative ability. The hydra is a small tubular, two layered fresh water animal computing 20mm in

Calcium channel blockers, Calcium antagonists are not recommended for the t...

Calcium antagonists are not recommended for the treatment of CHF because of their negative inotropic effects. However, second-generation dihydropyridine-type calcium antagonists su

Spleen, SPLEEN Largest lymph gland, also with myeloid tissue is an i...

SPLEEN Largest lymph gland, also with myeloid tissue is an important specialized reticuloendothelial organ in vertebrates, as the site of erythropoiesis. Splenic tissue i

What are zoonotic diseases, Q. What are Zoonotic Diseases? The World He...

Q. What are Zoonotic Diseases? The World Health Organization defines Zoonoses (Zoonosis, sing.) as "Those diseases and infections, which are naturally transmitted between verte

Define the medical complications of bulimia nervosa, Define the Medical Com...

Define the Medical Complications of Bulimia Nervosa? The medical complications of bulimia nervosa range from fairly benign, transient symptoms, such as fatigue, bloating and co

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