Natural selection can alter the frequency of distribution allele and heritable trait in different following way

A- Accumulation of those mutation that increase fitness of population in changing environment

B- Check accumulation of mutation that lower the fitness of species in unchanging environment

c- occur when population is subjected to divergent selection

TLS Online TPP Program

#Question id: 3761

#Unit 3. Fundamental Processes

 Which of the following statements correctly describes the difference between ATP and the nucleotides used during DNA synthesis?

TLS Online TPP Program

#Question id: 3762

#Unit 3. Fundamental Processes

Why does a new DNA strand elongate only in the 5' to 3' direction during DNA replication?

TLS Online TPP Program

#Question id: 3763

#Unit 3. Fundamental Processes

What is the function of the enzyme topoisomerase in DNA replication?

TLS Online TPP Program

#Question id: 3764

#Unit 3. Fundamental Processes

What is the role of DNA ligase in the elongation of the lagging strand during DNA replication?

TLS Online TPP Program

#Question id: 3765

#Unit 3. Fundamental Processes

Which of the following types of molecules help to hold the DNA strands apart while they are being replicated?

TLS Online TPP Program

#Question id: 3766

#Unit 3. Fundamental Processes

Individuals with the disorder xeroderma pigmentosum are hypersensitive to sunlight, and mutations to the DNA in their skin cells are left uncorrected. Why are the mutations not corrected in individuals with this disorder?