8. During meiosis, when does chromosome disjunction occur? When does chromatid disjunction occur? (2mks) __ interphase metoeh Both DNA and RNA are composed of form a nucleotide. (3ppks) 11.Consider a short segment of a wild type gene with the following coding nucleotide sequence: 5'-TACAGGCGTACCCCT-3' Give the sequence of the mRNA after transcription of the segment (2mks) GA TAA

## Step 1<br />The question asks about the stages of meiosis when chromosome disjunction and chromatid disjunction occur. Chromosome disjunction refers to the separation of chromosome pairs at the metaphase plate during anaphase I of meiosis I. This results in daughter cells with half the number of chromosomes. Chromatid disjunction, on the other hand, refers to the separation of sister chromatids at the centromere during anaphase II of meiosis II.<br /><br />## Step 2<br />The question also asks about the composition of DNA and RNA. Both DNA and RNA are composed of nucleotides, which consist of a phosphate group, a five-carbon sugar (pentose), and a nitrogenous base.<br /><br />## Step 3<br />The final question asks for the sequence of mRNA after transcription of a given DNA segment. Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA). During transcription, the DNA sequence is read and the corresponding RNA nucleotides are added to the growing mRNA chain. The RNA nucleotides are complementary to the DNA nucleotides, with the exception that RNA contains uracil (U) instead of thymine (T).