Principle Of Inheritance And Variation Question 378
Question: Assertion : Polyploidy in plant is common. Reason : Animals composed entirely of polyploid cells are rare.
Options:
A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
Show Answer
Answer:
Correct Answer: B
Solution:
Organism with three or more genomes are polyploids.
Fully one-half of all known plant genera contain polyploids and about two-thirds of all the grasses are polyploids but polyploids are rarely seen in animals.
Although animals composed entirely of polyploid cells are rare, many diploid have polyploid cells within certain tissues of their bodies.
Giant polyploid nuclei occur in particular tissues of a wide range of diploid animals (eg., the liver and kidneys in humans).
BETA
