Download App

STD 12 - 2. human reproduction — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 12 - 2. human reproduction4 Marks
MCQ
Assertion : In morula stage, cells divide without increase in size.

Reason : Zona pellucida remains undivided till cleavage is complete.

  • ✓
    If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
  • B
    If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
  • C
    If the Assertion is correct but Reason is incorrect.
  • D
    If both the Assertion and Reason are incorrect.
✓

Answer

Correct option: A.
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
a
Morula involves cleavage of cells till $32$ cell stage is formed. It is still surrounded by Zona pellucida.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Loop of Henle is concerned with
→
Which of the following is not under direct control of pituitary gland with respect to the regulation of its secretory function
→
Given below are few layers between the glomerular and Bowman's capsule through which the filtration takes place.
i. Endothelium of the glomerular blood vessel.
ii. Middle lamella.
iii. Basement membrane between the endothelium of glomerular blood vessels and epithelium of the Bowman's capsule.
iv. Epithelium of the Bowman's capsule.
Identify the correct layers.
→
The most active phagocytic white blood cells are
→
A man of blood group-$A$, marries a woman of blood group-$B$, both of them are heterozygous for blood group, chances of their first child having blood group $AB$ will be
→
Assertion : Interferons are a type of'antibodies produced by body cells infected by bacteria.

Reason : Interferons stimulate inflammation at the site of injury.

→
Origin of mammal-like reptiles occurred in
→
Which of the following abnormalities is due to autosomal dominant mutation?
→
Assertion : Copper $-T$ is an effective contraceptive device in human females.

Reason : Copper $-T$ prevents passage of sperms from vagina upwards into fallopian tubes.

→
Statement I: Multipolar neurons are found in the cerebral cortex.
Statement II: Unipolar neurons are found in the retina of eye.
→