One of the secondary structures exhibited by DNA is the famous Watson-Crick model. This model says that DNA exists as a double helix. The two strands of polynucleotides are antiparallel i.e., run in the opposite direction.

Correct Option: B

One of the secondary structures exhibited by DNA is the famous Watson-Crick model. This model says that DNA exists as a double helix. The two strands of polynucleotides are antiparallel i.e., run in the opposite direction.

During G₁ phase the cell is metabolically active and continuously grow. S or synthesis phase marks the period during which DNA synthesis or replication takes place. In G₂ phase , proteins are synthesised. M phase represents the phase when the actual cell division or mitosis occurs.

Correct Option: C

During G₁ phase the cell is metabolically active and continuously grow. S or synthesis phase marks the period during which DNA synthesis or replication takes place. In G₂ phase , proteins are synthesised. M phase represents the phase when the actual cell division or mitosis occurs.

60% proteins and 40% lipids

Correct Option: D

60% proteins and 40% lipids

Oxysomes (Elementary particles or inner membranes sub-units or F₁ particles); these are responsible for respiratory chain phosphorylation.

Correct Option: C

Oxysomes (Elementary particles or inner membranes sub-units or F₁ particles); these are responsible for respiratory chain phosphorylation.

Almost all the proteins synthesized by ER bounded ribosomes are converted into glycoproteins and this glycosylation occurs in the rough ER.

Correct Option: A

Almost all the proteins synthesized by ER bounded ribosomes are converted into glycoproteins and this glycosylation occurs in the rough ER.