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Choose an option with the correct statem...

Choose an option with the correct statements from the list below `:`
i. The telomere is heterochromatic in nature.
ii. The telocentric chromosome has centromere close to its end.
iii. Satellite is located near primary constriction.
iv. Submetacentric chromosomes are L-shaped.

A

i & ii

B

ii & iii

C

iii & iv

D

i, ii & iv

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to evaluate each statement regarding chromosomes and determine which ones are correct. Let's analyze each statement step by step: ### Step 1: Evaluate Statement i **Statement i:** The telomere is heterochromatic in nature. - **Explanation:** Telomeres are the ends of chromosomes and are indeed composed of heterochromatin, which is generally genetically inactive. Therefore, this statement is **true**. ### Step 2: Evaluate Statement ii **Statement ii:** The telocentric chromosome has centromere close to its end. - **Explanation:** Telocentric chromosomes have their centromeres located at the very end of the chromosome, making them rod-like in appearance. However, the statement is misleading because it suggests that the centromere is merely "close" to the end, which can be interpreted as not being at the end. Therefore, this statement is **false**. ### Step 3: Evaluate Statement iii **Statement iii:** Satellite is located near primary constriction. - **Explanation:** Satellites are indeed located near the primary constriction (centromere) of chromosomes. This statement is therefore **true**. ### Step 4: Evaluate Statement iv **Statement iv:** Submetacentric chromosomes are L-shaped. - **Explanation:** Submetacentric chromosomes have the centromere located slightly off-center, resulting in one arm being longer than the other. This can give them an L-shape appearance. Thus, this statement is **true**. ### Conclusion Based on the evaluations: - Statement i: True - Statement ii: False - Statement iii: True - Statement iv: True The correct statements are i, iii, and iv. Therefore, the option that includes these statements is the correct answer. ### Final Answer The correct option is the one that includes statements i, iii, and iv. ---
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