Home
Class 11
BIOLOGY
Assertion: Algae shown only anisogamous ...

Assertion: Algae shown only anisogamous type of reproduction.
Reason: In algae, gametes can never be non flagellated.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

if both assertion and reason are true but reason is not the correct explanation of assertion

C

if assertion is true but reason is false.

D

if both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
D
Sexual reproduction in algae takes place thorugh fusion of two gametes. These gametes can be flagellated and similar in size (as in Chlamydomonas) or non-flagellanted (non-motile) but similar in size (as in Spirogyra). Such reproduction is called isogamous.
Promotional Banner

Similar Questions

Explore conceptually related problems

List out the various types of vegetative reproduction seen in algae.

Deseribe the various types of sexual reproduction observed in algae.

Assertion : Algae and fungi switch to asexual method of reproduction before the onset of adverse conditions. Reason : Asexual reproduction may introduce variations and leads to the formation of many clones.

Assertion :Human female are homogametic Reason:In female,the gametes or the eggs formed are similar in their sex chromsome type.

Assertion (A) : Algae classified based on pigmentation only. Reason (R ) : Classification of algae based on pigmentation , types of flagella, reserve food materials, thallus structure and reproduction.

Assertion (A) : Blue green algae are prokaryotes. Reason (R) : They do not have a true nucleus.

Assertion (A) : Self - pollination is certain in cleistogamous flowers. Reason (R) : Flowers never open and not expose reproductive organs.

Assertion: A simple tissue is made of only one type of cells. Reason: Various simple tissues in plants areparenchyma, collenchyma and sclerenchyma.

Assertion: All copulations do not lead to the fertilisation and pregnancy. Reason: Fertilisation can occur only if the ovum and sperms are transported simultaneously to the ampullary isthmic junction.

Assertion : Hardy Weinberg's law is applicable only based on certain assumptions. Reason : The law can be considered, if nature acts as a selective force.