A mutation in which one nucleotide is substituted for another is called a point mutation.
Answer:
The correct answer is D viruses that enter a lysogenic cycle do not immediately kill a host cell.
Explanation:
Lysogenic cycle is carried out by lambda phage which integrate its DNA with the genome of bacteria resulting in the formation of prophage.
The phage DNA replicate along with bacterial DNA and exist in this form for a period of time until the phage DNA recognizes any type of mutation such as exposure to ultraviolet ray which helps the lambda phage to enter the lytic cycle.
Answer:
False.
Explanation:
Linked genes are the genes that are present on the same chromosome and can undergo the process the recombination. The recombinant progeny are obtained by the crossing of the linked genes.
The recombinant frequency and map distance can be deduced by the mapping of the linked genes. The genotype of the heterozygote cannot be deduced by examining phenotype and sometimes the recombinant progeny is completely different from the parents as well as from the heterozygotes.
Thus, the correct answer is false.
