Practice Questions

TLS Online TPP Program

#Question id: 766

With respect to microRNAs, which, if any, of the following statements, is true?

#SCPH01 Biochemistry

MicroRNA is a generic term that covers all tiny RNAs, ones that are less than 35 nucleotides long when mature.
MicroRNA genes often occur in gene clusters within introns of protein-coding genes and are usually transcribed by RNA polymerase II.
MicroRNAs regulate target genes by binding to complementary sequences on one DNA strand of the target gene.
MicroRNAs normally regulate the expression of just a single target gene.

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TLS Online TPP Program

#Question id: 15875

#SCPH05 I Biotechnology

Suspension cultures show both numerical and structural chromosomal changes such as;

TLS Online TPP Program

#Question id: 15875

#SCPH05 I Biotechnology

Suspension cultures show both numerical and structural chromosomal changes such as;

TLS Online TPP Program

#Question id: 15876

#SCPH05 I Biotechnology

The following growth regulators (GRs)- auxins, cytokinins, ABA and GA3 are used in plant tissue culture, The common range of concentrations used are as follows:

GROWTH REGULATOR(GRs) CONCENTERATION

A) AUXIN i) 0.1-3 mg/L

B) GA3 ii) 0.2 mg/L

C) CYTOKININ iii) 0.1-1 mg/L

TLS Online TPP Program

#Question id: 15876

#SCPH05 I Biotechnology

The following growth regulators (GRs)- auxins, cytokinins, ABA and GA3 are used in plant tissue culture, The common range of concentrations used are as follows:

GROWTH REGULATOR(GRs) CONCENTERATION

A) AUXIN i) 0.1-3 mg/L

B) GA3 ii) 0.2 mg/L

C) CYTOKININ iii) 0.1-1 mg/L

TLS Online TPP Program

#Question id: 15877

#SCPH05 I Biotechnology

Zinc as micronutrient is used in culture media for____

TLS Online TPP Program

#Question id: 15877

#SCPH05 I Biotechnology

Zinc as micronutrient is used in culture media for____