Formation of Chromatin Loops in the nucleus might result in A. Transcriptional a

Question

Formation of Chromatin Loops in the nucleus might result in

A. Transcriptional activation

B. Transcriptional repression

C. Epigenetic Regulation

D. Long range genomic interactions

E. All of the above

Which of the following statements is false?

A. All the muscle cells in human body express MyoD

B. All the cells in human body express MyoD and a few homeotic genes

C. MyoD protein can transform few differentiated cells into muscle cells

D. Pattern formation is controlled by specific genes

E. Morphogens are molecules that affect cell fate by their differential expression

Which of the following questions could NOT be answered by the process of RNA

interference (RNAi)?

A. What is the function of gene OSU in a particular species of a spider?

B. What will happen in a particular insect's digestion if gene OHO is not able to be translated?

C. Is gene MICH expressed in individuals for a disorder in humans?

D. Will the disabling of gene NEIL in Drosophila and in a mouse cause similar results?

E. None of the above

Please explain thoroughly why you chose your answers.

Explanation / Answer

1.

Formation of Chromatin Loops in the nucleus might result in transcription activation of coding genes and transcription repression of inactive genes or noncoding sequences. The chromatin formation cause long range of interactions and epigenetic modifications such as methylation, acetylation etc. Hence, option E is correct.

2.

All the cells in human body express MyoD and a few homeotic genes is False. This is because the cells that express the MyoD will turn to develop into muscle cells and the homeotic genes encode for the formation and development of appendages. Hence, option B is correct.

3.

RNA interference is useful to study the function of gene, physiological activity of silencing a gene, gene activation or inactivation affecting the function of gene. comparitive study of genes in different organisms. Hence, option E is correct.

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