1. Chlamydomonas is a green alga that produces isogametes. True False 2. The difficulties of replicating...

1. Chlamydomonas is a green alga that produces isogametes.

True

False

2.

The difficulties of replicating the ends of a linear DNA molecule are solved by the enzyme called

		Telomere
		DNA polymerase
		RNA polymerase
		Telomerase

Expert Solution

Answer: Answer 1: Option(1) is correct ---- True

Explanation: Isogametes is the process of formation of gamets which are similar in its phenotypic appearance. The unicellular species Chlamydomonas reinhardtii which is unicellular green algae reproduce by the isogamous type. Under unfavourable condition (nitrogen deficiency) the two identical mating(isogamets) forms as (+) and(-) are formed which result in formation of zygote

Answer 2: Option(4) is correct--- Telomerase

Explanation: During the process of replication there is chance of loose of the DNA segment which is a part of genome. As this is the part of genome due to this ends of a linear DNA molecule at every cycle DNA molecule shorten by the end replication problem. We can end up with this problem by the presence of Telomerase enyme. Telomerase enzyme has got its own RNA templet and it has also polymerase activity with which it can add the nucleotide to the third terminal ends.

gladiator answered 2 years ago

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