Download App

STD 12 - 4. principal of inheritance and variation — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 12 - 4. principal of inheritance and variation4 Marks
MCQ
Assertion : In humans, the gamete contributed by the male determines whether the child produced will be male or female.

Reason : Sex in humans is a polygenic trait depending upon a cumulative effect of some genes on $X-$ chromosome and some on $Y-$ chromosome.

  • A
    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.
  • ✓
    If the Assertion is correct but Reason is incorrect.
  • D
    If both the Assertion and Reason are incorrect.
✓

Answer

Correct option: C.
If the Assertion is correct but Reason is incorrect.
c
In humans, sex of a child depends upon the gametes produced by the male $(X,\,Y)$.

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

Pedigree analysis is very important in human beings because
→
Which bacterium responsible for large holes in 'Swiss chees' are due to production of a large amount of $CO_2$ ?
→
The synthetic drug structurally similar to adrenalin are
→
Which of the following characters for mollusca are correct ?
(i) Body have distinct head, muscular foot and visceral hump.
(ii) A soft and spongy layer of skin forms a mantle over the visceral hump.
(iii) The space between the head and the mantle is called the mantle cavity.
(iv) Mantle cavity have feather like gills which related with respiratory and excretory functions.
(v) The mouth contains a file-like rasping organ for feeding, called radula.
(vi) They are usually monoecious and oviparous with indirect development.
→
Which of the following animals maintain ecological balance?
→
The difference between blood and lymph is
→
What is the correct order or events occurring in blood clotting?

$I.$ Conversion of fibrinogen to fibrin

$II.$ Formation of clot

$III.$ Thromboplastin formation

$IV.$ Conversion of prothrombin to thrombin

Choose the correct option

→
The $U-$shaped bone present at the base of buccal cavity is
→
Find out correct choice for Cu based $IUDs$

$I$. Increases phagocytes of sperms

$II$. Releases $C u^{2+i i}$ ions that suppresses the sperms motility and fertilizing capacity of sperms

$III$. Make the uterus unsuitable for implantations

→
The dark band present on myofibril is
→