TLS Online TPP Program

#Question id: 2724


When DNA is compacted by histones into 10 nm and 30 nm fibers, the DNA is unable to interact with proteins required for gene expression. Therefore, to allow for these proteins to act, the chromatin must constantly alter its structure. Which processes contribute to this dynamic activity?

#SCPH05 I Biotechnology
  1. DNA supercoiling at or around H1

  2. Methylation and phosphorylation of histone tails

  3. Hydrolysis of DNA molecules where they are wrapped around the nucleosome core

  4. Accessibility of heterochromatin to phosphorylating enzymes

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TLS Online TPP Program

#Question id: 12932

#SCPH05 I Biotechnology

Why mRNA cannot be used directly in cloning?

TLS Online TPP Program

#Question id: 12932

#SCPH06 I Botany

Why mRNA cannot be used directly in cloning?

TLS Online TPP Program

#Question id: 12932

#SCPH28 | Zoology

Why mRNA cannot be used directly in cloning?

TLS Online TPP Program

#Question id: 12933

#SCPH01 Biochemistry

Choose the correct order for the cloning process.
1. The production of cDNA is carried out using an enzyme termed Reverse transcriptase.
2. mRNA cannot be used directly in cloning.
3. It is possible to synthesis complementary DNA molecule to all the mRNA from the selected tissue.
4. The cDNA may be inserted into vectors and then cloned.

TLS Online TPP Program

#Question id: 12933

#SCPH05 I Biotechnology

Choose the correct order for the cloning process.
1. The production of cDNA is carried out using an enzyme termed Reverse transcriptase.
2. mRNA cannot be used directly in cloning.
3. It is possible to synthesis complementary DNA molecule to all the mRNA from the selected tissue.
4. The cDNA may be inserted into vectors and then cloned.

TLS Online TPP Program

#Question id: 12933

#SCPH06 I Botany

Choose the correct order for the cloning process.
1. The production of cDNA is carried out using an enzyme termed Reverse transcriptase.
2. mRNA cannot be used directly in cloning.
3. It is possible to synthesis complementary DNA molecule to all the mRNA from the selected tissue.
4. The cDNA may be inserted into vectors and then cloned.