MHT CET · BIOLOGY · STD 12 - 1. Reproduction in Lower and Higher Plants

Generally, embryo sac in angiosperms is_________ .

A Bisporic, endosporic, 8 celled and 7 nucleated
B Bisporic, exosporic, 7 celled and 8 nucleated
C Monosporic, endosporic, 7 celled and 8 nucleated
D Monosporic, exosporic, 8 celled and 7 nucleated

Verified Solution

Answer & Solution

Correct Answer

(C) Monosporic, endosporic, 7 celled and 8 nucleated

Step-by-step Solution

Detailed explanation

Angiospermic embryo is monosporic developed from single cell, developed within ovule, 7 celled and eight nucleated

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

Match the structures/parts of human male reproductive system in Column I with their respective explanation in Column II and select the correct answer from given options.

	Column I		Column II
i.	Prepuce	a.	Fibromuscular band that retains testis in scrotum.
ii.	Penis	b.	Primary male reproductive gonad.
iii.	Testis	c.	Loose fold of skin covering glans penis.
iv.	Gubernaculum	d.	Male copulatory organ.

MHT CET 2024 Hard

Which part of plant shows determinate growth?

MHT CET 2020 Hard

Match types of poultry breeds in Column I with their examples in Column II.

	Column I Organism		Column II Economic importance
i.	Trachardia lacca	a.	used to produce oils, soaps and isinglass
ii.	Bombyx mori	b.	helps in pollination of crops
iii.	Cirrhina mrigala	c.	resin like substance produced by dermal glands
iv.	Apis mellifera	d.	best quality of mulberry silk is produced

MHT CET 2024 Hard

Match Column I with Column II.

	Column-I		Column - II
i.	Radial translocation	a.	Translocation of food from phloem to cortex
ii.	Tangential translocation	b.	Translocation of food from phloem to pith
iii.	Longitudinal translocation	c.	Translocation of food from source to sink

MHT CET 2023 Easy

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	Column I		Column II
A.	Newts and tadpoles	I.	Plasma membrane
B.	Platyhelminthes	II.	External gills
C.	Reptiles	III.	Body surface
D.	Protists	IV.	Lungs