MCQ
For two statements are given$-$one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below.
Assertion: Perisperm is protective covering of seed and helps in dispersal and nutrition.
Reason: Pericarp is covering of fruit which is non$-$functional.
  • A
    Both assertion and reason are true, and reason is the correct explanation of assertion.
  • B
    Both assertion and reason are true, but reason is not the correct explanation of assertion.
  • C
    Assertion is true, but reason is false.
  • Both assertion and reason are false.

Answer

Correct option: D.
Both assertion and reason are false.
Perisperm is unused nucellus in the seed. lt is often non functional for seed. Pericarp is the covering of fruit that develops from ovary wall. lt is protective covering and also helps in dispersal and nutrition.

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

Similar questions

For two statements are given$-$one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below.
Assertion: In angiosperms, the first fertilization is called syngamy.
Reason: Second fertilization is called vegetative fertilization.
For two statements are given$-$one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below.
Assertion: Sequences of bases in one polynucleotide chain of $\text{DNA}$ can determine the sequence of bases in the other chain.
Reason: In a $\text{DNA},$ amount of adenine equals that of thymine and amount of guanine equals that of cytosine$, i.e., A = T$ and $C = G.$
Silencing of a gene could be achieved through the use of:
Directions: In the following questions, the Assertions $(A)$ and Reason$(s) (R)$ have been put forward. Read both the statements carefully and choose the correct alternative from the following:
Assertion: $\text{XX - XY}$ type of sex determination mechanism is an example of female heterogamety and is found in Drosophila.
Reason: Male heterogamety is seen in moths where males produce two different types of gamete.
Name any genetically modified crop.
Assertion (A): Deoxyribonucleoside triphosphates serve dual purposes.
Reason (R): They act as proof readers and provide energy.
For two statements are given$-$one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below.
Assertion: Azolla is used as a biofertiliser in rice fields.
Reason: Azolla shows the presence of $N_2-$ fixing bacteria in its leaf cavities.
For two statements are given$-$one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below.
Assertion : Subsequent encounter with the same pathogen elicits a highly intensified anamnestic response.
Reason: This is based on the fact that our body appears to have memory of the first encounter.
For two statements are given$-$one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below.
Assertion: Hybrids are generally superior than their parents.
Reason: All the dominant traits are present in the hybrid.
Assertion (A): Generally, a woman does not conceive during the lactation period.
Reason (R): The hormone 'prolactin initiates and maintains lactation in a postpartum woman.