Radioactive thymidine when added to the medium surrounding living mammalian cells gets incorporated into the newly synthesised DNA. Which of the follo

Question

Radioactive thymidine when added to the medium surrounding living mammalian cells gets incorporated into the newly synthesised DNA. Which of the follo

Radioactive thymidine when added to the medium surrounding living mammalian cells gets incorporated into the newly synthesised DNA. Which of the following types of chromatin is expected to become radioactive if cells are exposed radioactive thymidine as soon as they enter the S-phase?
A. Heterochromatin
B. Euchromatin
C. Both (a) and (b)
D. Neither heterochromatin nor euchromatin but only the nucleolus

Monjur Alahi

7 views

2025-01-04 04:42

1 Answers

Related Questions

Assertion A ray of light travels from first medium to second medium. In first medium, angle of ray with normal is `i_(1) =30^(@)` and in second medium

2 Answers 4 Views

A ray of light passes from a medium A having refractive index 1.6. to the medium B having refractive index 1.5. The value of critical angle of medium

2 Answers 6 Views

State the two main rights that a newly admitted partner acquires in the firm. Or State the rights acquried by a newly admitted partner.

2 Answers 5 Views

A polysaccharide, which is synthesised and stored in liver cells is

2 Answers 4 Views

In which stage of the cell cycle are histone proteins synthesised in a eukaryotic cells ?

2 Answers 6 Views

The wild type E. coli cells are growing in normal medium with glucose. They are transferred to a medium containing only lactose as sugar. Which of the

2 Answers 4 Views

Give reasons why : (a) DNA cannot pass into a host cell through the cell membrane. (b) Proteases are added during isolation of DNA for genetic enginee

2 Answers 4 Views

“SQPecific Bt Toxin gene is incorporated into cotton plant so as to control infestation of Bollworm”. Mention the organism from which the gene was iso

2 Answers 4 Views

Plasma cells are derived from (A) Memory B-cells (B) Helper T-cells (C) Memory T-cells (D) Cytotoxic T-cells

2 Answers 5 Views

A radioactive nucleus A decays into B with a decay constnat `lambda_(1)`. B is alos radioactive and it decays into C with a decay constant of `lambda_

2 Answers 8 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - B
In the beginning of S-phase, DNA replication occurs. DNA replication can occur in diffuse/less tightly coiled euchromatin. So active DNA stains light in colour when stained with acetocarmin and feulgen reagent in comparison to heterochromatin.

7 views Answered 2023-02-05 15:29