Evolution — BIOLOGY STD 12 Science — Question

Explain the difference between Dryopithecus and Ramapithecus animals?

In case of an infertile couple, the male partner can inseminate normally but the mobility of sperms is below 40 per cent. Judge, which kind of ART is suited in this situation to form an embryo in the laboratory, without involving a donor?

Name two commonly used vectors for genetic engineering.

Name the inheritance where both the genotypic and phenotypic ratios are same.

Sticky ends help in the functioning of which enzyme?

What do you understand by commaless in genetic code.

Why is RNA more reactive in comparison to DNA?

OR

Why do RNA viruses undergo mutation and evolution faster than most of the DNA viruses?

Name the part of gynoecium that determines the compatible nature of pollen grain.

Correct the following statement :
Surgical method of contraception perevent gamete formation.

Mention two functions of the codon AUG.