Practice Questions

TLS Online TPP Program

#Question id: 7097

What property of the mammalian embryo permits the production of chimeric mice?

#Unit 5. Developmental Biology

The inner cell mass is highly regulative, so that extra cells derived from the inner cell mass of a different embryo are incorporated without causing defects.
f half of the cells of the inner cell mass are removed and replaced with cells from half of a different embryo's inner cell mass, the embryo will heal and develop normally.
The embryo can develop outside the womb, making surgical manipulations possible
Blastomeres separated at the two-cell stage will regulate and each forms a normal embryo.

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TLS Online TPP Program

#Question id: 21964

#Unit 2. Cellular Organization

Choose the incorrect statement

a. S/MARs are a DNA sequence which is generally located between H1 and H3 binding sites.

b. S/MARs are a DNA sequence which is generally located between H3 and H4 binding sites

c. S/MARs is a DNA sequence which binds to base structure called matrix

d. S/MARs is a DNA sequence which binds to base structure called scaffold

TLS Online TPP Program

#Question id: 21965

#Unit 2. Cellular Organization

Which of the following is a protein that appears to regulate the association of MARs with the matrix in order to regulate transcription of genes in the vicinity of the MAR

TLS Online TPP Program

#Question id: 21966

#Unit 2. Cellular Organization

Which of the following is true about interphase chromosome

a. Interphase chromosomes occupy chromosome territories in the nucleus

b. Interphase chromosomes occupy chromosome territories toward cell membrane

c. Interphase chromosomes are not entangled with each other except cancer

d. Interphase chromosomes are entangled with each other except cancer

TLS Online TPP Program

#Question id: 21967

#Unit 2. Cellular Organization

Heterochromatic regions, silenced genes, and gene-sparse regions of chromosomes are typically localized to

TLS Online TPP Program

#Question id: 21968

#Unit 2. Cellular Organization

Which of the following is correct regarding the euchromatin

a. Active genes/euchromatin are often found at the borders of chromosome territories

b. active genes from several chromosomes may cluster in inter-chromosomal territories that are enriched in transcription machinery

c. Active genes/euchromatin are often found at the periphery of nuclear wall

d. active genes from several chromosomes may cluster in inter-chromosomal territories do not have transcription machinery

TLS Online TPP Program

#Question id: 21969

#Unit 2. Cellular Organization

Choose the correct statement

a. Interphase chromosomes occupy chromosome territories in the nucleus and are not entangled with each other

b. Heterochromatic regions, silenced genes, and gene-sparse regions of chromosomes are typically localized to the nuclear periphery

c. Interphase chromosomes occupy chromosome territories in the nucleus and are entangled with each other

d. Heterochromatic regions, silenced genes, and gene-sparse regions of chromosomes are typically localized to the nuclear centre