Which of the following is a textcross? AABB times AABB AaBb times AaBb AaBb time

Question

Which of the following is a textcross? AABB times AABB AaBb times AaBb AaBb times AABB aabb times AaBb Sodaria is in which phylum? Baisidiomycota Ascomycota Bryophyta Zygomycota None of the above Structural aberrations in the chromosomes can be designated as all except Translocation Deletion Derivative Inversion Misnomer Which of the following do not occur during post-transcriptional processing of RNA in euk the splicing of introns addition of a poly-A at the 3' end removal of introns addition of a 7-methyl guanosine cap at the 5' end Removal of introns from RNA is by Primosomes Peptidases Galactosidases Splicesomes

Explanation / Answer

11. Test cross is a cross between F1 progeny with the recessive parent, therefore the answer is Option D, aabb x AaBb

12. Sodaria belongs to phylum ascomycota

13. there are 4 types of Structural abberation in chromosomes, Translocation, Inversion, Deletion and Duplication. Recently, another term has been added to these abberations that is derivative chromosome (der). it is a structurally rearranged chromosome formed either by a rearrangement involving two or more chromosomes or by multiple aberrations within a single chromosome. Hence answer is Misnomer, option E

14. The option is D Addition of 7-methyl guanosine cap at the 5' end. This capping of 5' end catalyzed by enzyme guanylyl transferase and occur early in transcription, just after the addition of first 20 to 30 nucleotides to the transcript. The capping protect the mRNA from degradation by nucleases and provide a feature for recognition by the protein-synthesizing machinery. The other modifications such as addition of poly A tail and splicing occur only when transcription of complete.

15. Introns are non-coding squences that trnascribed along with coding sequences known as Exons, during the process of transcription. therefore, these non-coding sequences are spliced out from the primary transcript by a process known as splicing. this is catelyzed by enzyme complex Splicesomes, hence option is E

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.