0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Question

Assertion :Water is not required for fertilization process in ferns. Reason: Malic acid of Archegonial neck attracts antherozoids.
  1. Both the assertion and the reason are true and the reason is a correct explanation of the assertion.
  2. Both the assertion and reason are true but the reason is not a correct explanation of the assertion.
  3. The assertion is true but the reason is false.
  4. The assertion is false and the reason is true.

A
Both the assertion and the reason are true and the reason is a correct explanation of the assertion.
B
The assertion is true but the reason is false.
C
Both the assertion and reason are true but the reason is not a correct explanation of the assertion.
D
The assertion is false and the reason is true.
Solution
Verified by Toppr

In ferns, fertilization takes place with the help of water. On attaining maturity the archegonia absorb water, the cells lining the neck undergo disintegration and push open the cover cells. The release from archegonium contains a chemotactic substance Malic acid that attracts the antherozoids towards the archegonium for fertilization of the egg.
So, the correct option is option 'D'.

Was this answer helpful?
0
Similar Questions
Q1
Assertion : Amount of cyanocobalamine required daily is 3 mcg
Reason : Its deficiency causes pernicious anaemia
View Solution
Q2
Assertion: A cyclic parallelogram is a square.
Reason: Diameter is the largest chord in a circle.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.
View Solution
Q3
(i)
Assertion: A circle is not a rectilinear figure.
Reason: A figure formed by straight lines only is called a rectilinear figure.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.
(ii)
Assertion: All right angles are equal to one another.
Reason: A unique line passes through a single point.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.
View Solution
Q4
Assertion: Every parallelogram is a rectangle.
Reason: The angle bisectors of a parallelogram form a rectangle.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.
View Solution
Q5

Assertion: MTP usually is done in order to control the spread of HIV

Reason :MTP is post fertilization method of contraception

1. Both assertion and reason are true and the reason is the correct explanation of the assertion

2. Both assertion and reason are true but reason is not correct explanation of the assertion

3. Assertion is true statement but reason is false

4. Both assertion and reason are false statements

View Solution