Melanin protects against the harmful effects of sunlight, and people with red hair are usually fair skinned and particularly susceptible to skin cancer.

TLS Online TPP Program

#Id: 3719

#Unit 2. Cellular Organization

Repetitive DNA sequences renature faster than non repetitive DNA due to uniformity of sequence

TLS Online TPP Program

#Id: 3962

#Unit 2. Cellular Organization

Chromosome has to be read under following heads

1. Packaging and packing proteins

2. Supercoiling

3. Loops, domains, centromere and telomere

4. Histones

TLS Online TPP Program

#Id: 3963

#Unit 2. Cellular Organization

The capsid is assembled around the genome for single-stranded RNA viruses in TMV.

TLS Online TPP Program

#Id: 3965

#Unit 2. Cellular Organization

Inserting DNA into a phage head involves two types of reaction:

translocation and condensation. Both are energetically unfavorable.

The genome is packaged into the empty capsid by the terminase enzyme.

TLS Online TPP Program

#Id: 3966

#Unit 2. Cellular Organization

In E.coli, Protein HU is a dimer that condenses DNA, possibly wrapping it into a beadlike structure.

TLS Online TPP Program

#Id: 3967

#Unit 2. Cellular Organization

The bacterial genome consists of a large number of loops of duplex DNA (in the form of a fiber), each of which is secured at the base to form an independent structural domain.