TLS Online TPP Program

#Question id: 12837


Haploid yeast cells were grown in culture and stained with propidium iodide, a fluorescent dye that is incorporated into DNA. The x axis shows DNA content, the y axis the number of cells. The DNA content analysis shows different populations of cells.

Which of the following statement is correct regarding to above graph?

#Unit 2. Cellular Organization
  1. Cells with unreplicated DNA (1C) and with replicated DNA (2C). The cells between the two peaks represent cells that are in the process of undergoing mitosis.
  2.  Cells with replicated DNA (1C) and with unreplicated DNA (2C). The cells between the two peaks represent cells that are in the process of undergoing DNA replication.
  3. Cells with unreplicated DNA (1C) and with replicated DNA (2C). The cells between the two peaks represent cells that are in the process of undergoing DNA replication.
  4.  Cells with unreplicated DNA (1C) and with replicated DNA (2C). The cells between the two peaks represent cells that are in the process of arrest in G1 phase.
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TLS Online TPP Program

#Question id: 3378

#Unit 11. Evolution and Behavior

Following certain conditions is present in a population?

A- Large Population

B- Each locus follows complete dominance

C- No reproductive advantage

D- No migration

E- No linkage between genes

Which of the following above condition allowed to validity of Hardy- Weinberg Prediction?

TLS Online TPP Program

#Question id: 28794

#Unit 2. Cellular Organization

Which of the following are actin-nucleating proteins or ANPs?

TLS Online TPP Program

#Question id: 18808

#Unit 13. Methods in Biology

What would happen if serum is omitted from the ELISA, but all other steps remain same?

TLS Online TPP Program

#Question id: 590

#Unit 1. Molecules and their Interaction Relevant to Biology

Which enzyme below is fastest?

TLS Online TPP Program

#Question id: 10807

#Unit 6. System Physiology – Plant

Cyanogenic Glycosides and Glucosinolates are nitrogen containing secondary metabolites in plants. Following are some statements regarding the action of Cyanogenic Glycosides and Glucosinolates;

a) Cyanogenic Glycosides release the poison hydrogen cyanide by the action of enzyme known as Hydroxynitrile lyase

b) Release of the mustard-smelling volatiles from glucosinolates is catalyzed by a hydrolytic enzyme, called a thioglucosidase or myrosinase

c) substerate for Glycosidase is Cyanogenic glycoside and Thioglucosidase is Aglycone

d) Like cyanogenic glycosides, glucosinolates are stored in the intact plant separately from the enzymes that hydrolyze them, and they are brought into contact with these enzymes only when the plant is crushed

Which of the following combinations of above statement is true?