Question

What is the major difference between the removal of introns in animal pre- mRNAs and removal of group II introns from pre-mRNAs: 1. In animals, many snRNPs are needed to carry out the splicing 2. In animals, the introns do not self-splice 3. In animals, the introns are self-splicing 1 2 Both 1 and 3 are correct Both 1 and 2 are correct

Answer 1

# The major difference between the removal of introns in animal pre-mRNAs and removal of group II introns from pre-mRNAs are- 1. In animal. many snRNPs are needed to carry out the splicing.

2. In animals, the introns are self-splicing.

(the answer is both 1 & 3)

# "A pair of homologous chromosomes align imperfectly during meiosis followed by genetic exchange" - causes unequal crossing over.

# Most of the newly synthesized RNA found within a cell is "hnRNA".

# The building block of nucleotides are- "a pentose sugar, a phosphate group, and a nitrogenous base".