Question

1. DNA is coiled around what type of proteins to form nucleosomes A. Polymerases DNA replication of the lagging strand is discontinuous B. Transcription factors DNA replication of the lagging strand is continuous C. Helicases D. Histones E. DICER 2. Which of the following statements is true? A. DNA replication of the leading strand is discontinuous B. DNA replication of the lagging strand is discontinuous C. DNA replication of the leading strand is dispersive D. DNA replication of the lagging strand is conservative E. Okazaki fragments synthesized from the lagging strand are ligated together F. Both A and Care true G. Both B and E are true 3. Which of the following is NOT required for DNA synthesis to take place? A. Topoisomerase to relax supercoiling in front of the replication fork B. Helicase to separate the strands of the double helix C. RNA primer D. Ligase to join Okazaki fragments E. Transcription factors F. All of the above What events must take place for transcription of a gene? A. TATA binding protein binds to the TATA box B. RNA polymerase binds to complete the preinitiation complex C. Transcription factors bind to the promoter region D. All of the above Which of the following statements describes alternative splicing? A. The process of ligating Okazaki fragments of the lagging strand B. The process of combining different exons of the same gene to produce unique proteins C. Different mRNA codons can code for the same amino acid D. Histones carry different methylation or acetylation modifications E. None of the above y different methods for the same aminosis to produce unique Which type of RNA functions to deliver amino acids to the ribosome during translation? A. mRNA BERNA C. TRNA D. siRNA E.miRNA

Answer 1

Chegg guidance allow us to answer first four multiple choice. Kindly repost the other question.

Answer 1 – (d)

DNA is coiled around histones proteins to form nucleosomes.

Explanation- DNA are negtaively charged which tightly coiled with the positively charged histones.

Answer 2- (g)

DNA replication of the lagging strand is discontinous and Okazaki fragments synthesized from the lagging strand are ligated together.

Explanation- Lagging starnd are discontinous due to the formation oof okazaki fragments and these are synthesized and ligated by the DNA ligase enzyme.

Answer 3- (f)

Transcription factor are not require for the DNA synthesis.

Explanation- These factors are required when DNA is converted into RNA during transcription process. These proteins are not involved into DNA synthesis.

Answer 4- (d)

Explanation- All of the above must take place during the transcription of gene. TATA binding protein are thos that binds at those site where the trancriptions occur called TATA box. Transcription factors are protein that bind to promotoe region.

THANK YOU