Biological Science - 2017 Past Year Paper - IIT JAM MCQ

There are many non- gated K⁺ channels, and very few non- gated Na⁺ channels

Na⁺ moves out of the cell down their concentration gradient

K⁺ moves into the cell down their concentration gradient

The Na⁺/K⁺ pump transports three Na⁺ into the cell for every two K⁺ out of the cell

Cells in the M phase of the cell cycle

Cells in the G1 phase of the cell cycle

Cells in the S phase of the cell cycle

Cells in the G2 phase of the cell cycle

p, q, r

r, q, p

r, p, q

q, r, p

Aschelminthes

Platyhelminthes

Annelida

Arthropoda

Permian

Jurassic

Carboniferous

Cambrian

Crocodiles

Bats

Dinosaurs

Turtles

Ribulose 5- phosphate

Glycerol 3- phosphate

Glucose 6- phosphate

Galactose 6- phosphate

Polynucleotide kinase

DNA polymerase

DNA ligase

RNA primase

f(x) = 1/x

f(x) = |x|

f(x) = x²

f(x) = 1/x²

e

π

∞

All the male progeny will have white eyes

All the female progeny will have white eyes

Half of the male progeny will have white eyes

Half of the female progeny will have white eyes

Directional selection

Stabilizing selection

Disruptive selection

Group selection

5' AUGUGCGGUGCAUAC 3'

5' UACACGCCACGUAUG 3'

5’CAUACGUGGCGUGUA 3'

S’GUAUGCACCGCACAU 3'

Both lambda and HIV can establish latency

Both lambda and HIV can integrate into the host genome

Both the viral genomes encode reverse transcriptase

Both the viral genomes are translated by the host cell machinery to produce viral proteins

(i)- (q), (ii)- (r), (iii)- (p), (iv)- (s)

(i)- (r), (ii)- (q), (iii)- (p), (iv)- (s)

(i)- (q), (ii)- (r), (iii)- (s), (iv)- (p)

(i)- (r), (ii)- (p), (iii)- (s), (iv)- (q)

Endoplasmic reticulum

Golgi

Peroxisome

Lysosome

4x²cos(2x) + 8xsin(2x)

–4x²cos(2x) + 8xsin(2x)

8x²cos(2x) + 8xsin(2x)

–8x²cos(2x) + 8xsin(2x)

Water moves out from the descending arm of the loop of Henle into the interstitium

NaCl moves out from the ascending arm of the loop of Henle into the interstitium

Urea moves out from the descending arm of the loop of Henle into the interstitium

Water does not move out from the ascending arm of the loop of Henle into the interstitium

Diploid, and produces gametes by meiosis

Haploid, and produces gametes by mitosis

Diploid, and produces gametes by mitosis

Haploid, and produces gametes by meiosis

Presence of glucose results in decreased concentration of intracellular Camp

Presence Of excess lactose prevents glucose utilization

Glucose binds to the lac operator and inhibits the operon

The level of catabolite gene activator protein (CAP) goes down drastically

Comparing DNA sequences of their plasmids

Comparing DNA sequences of their mitochondria

Comparing sequences of their rRNA genes

Comparing sequences of their tRNA genes

A cell isolated from a human embryo at the 8- cell stage

A cell isolated from the inner cell mass of a human blastocyst

A mesenchymal stem cell isolated from adult human bone marrow

A mesenchymal stem cell isolated from the human umbilical cord

Core glycosylation occurs in the RER and complex glycosylation occurs in the Golgi

Core glycosylation occurs in the Golgi and complex glycosylation occurs in the RER

Both core and complex glycosylation occur in the Golgi

Both core and complex glycosylation occur in the RER

Range of  is from -180° to +90°, and range of is from -90° to +180°

Range of is from -270° to +90°, and range of  is from -90° to +270°

Range of is from -180° to +180°, and range of  is from -180° to +180°

Range of is from -90° to +90°, and range of is from -90° to +90°

Triose phosphate isomerase

Phosphofructokinase

Aldolase

Glyceraldehyde 3- phosphate dehydrogenase

TW O monosaccharide units

One monosaccharide unit

One polypeptide chain

Two polypeptide chains

Oligosaccharides

Lipids

Proteins

Glycolipids

Nuclear membrane is present in Archaea, but not in Bacteria

Membranous organelles are present in Archaea, but not in Bacteria

The cell wall contains peptidoglycans in Bacteria, but not in Archaea

Streptomycin can inhibit growth of Archaea, but not Bacteria