Biochem Chap 1

Muscle cell nucleus was examined under the microscope and in the nucleus we were able to see two different forms of chromatin, one was condense and other was less condense. What statement given below best describes these form?

• Less condense form is Heterochromatin

• Highly condense form is Euchromatin

• Less condense form indicates presence of H1 protein

• High Condense form indicates absence of H1 protein

• None of the Above

Answer explanation

How Many total histones are present in Nucleosome?

• 4

• 8

• 9

• 6

Backbone of the DNA is made by?

• Nitrogenous bases

• Sugar

• PDE bond

• Hydrogen bond

Process of making Dna from DNA is termed as?

• Transcription

• Translation

• Replication

• Reverse Transcription

IN human cells telomerase does which of the following?

• Replication

• Translation

• Transcription

• Reverse Transcription

Gene expression if a term similar to?

• Replication

• Transcription

• Translation

• Reverse Transcription

Insulin is made by which type of pancreatic cells?

• Delta cells

• Alpha cells

• G-cells

• none of the above

Glucagon is made by which type of pancreatic cells?

• Delta Cells

• Alpha Cells

• G-cells

• None of the above

Endonuclease activation and chromatin fragmentation are characteristic features of eukaryotic cell death by apoptosis. Which of the following chromosome structures would most likely be degraded first in an apoptotic cell?

• Barr Body

• 10-nm fiber

• 30-nm fiber

• Centromere

• Heterochromatin

A double-stranded RNA genome isolated from a virus in the stool of a child with gastroenteritis was found to contain 15% Adenine. What is the percentage of Thymine in this genome?

• 15

• 25

• 35

• 75

• None of the above