Question

Select the correct statements
A.Spliceosomes take part in the translation
B.Franklin Stahl coined the term linkage.
C.Transduction was discovered by S.Altman
D.Punnett Square was discovered by British scientist

Answer 1

Hint:We know that DNA is the genetic material in most organisms. It stores genetic information. Synthesis of new DNA from existing DNA Is called DNA replication. Transcription is the process of copying genetic information from DNA to RNA. The process by which proteins are derived from RNA is called translation.

Complete answer:
We know that the eukaryotic gene has two regions. They are exons and introns. During the formation of mRNA, several unwanted regions were also seen in it. Removal of these unwanted regions and preserving the wanted regions is called splicing.
Regions of mRNA that code for different regions of the protein are called exons. Other regions of the gene that do not form parts of mRNA are called introns. They are removed in RNA processing. The large machinery that includes several enzymes for this purpose is called spliceosomes. They take part in translation.
Franklin Stahl was the scientist who experimentally proved the semi-conservative nature of DNA replication. Along with Meselson, he conducted several experiments in E.coli by growing them in a medium containing Nitrogen salts.
Viruses can carry genetic material by infecting a cell. Here, these viruses act as vectors, and this process is called transduction. The process of transduction was first described by a scientist named Joshua Lederberg.
We all have heard about punnett square which is used to study genotypes in mendelian experiments. It was discovered by a British scientist named Reginald C Punnet.
Hence the correct option is D.

Note: We know that several experiments were conducted to study about DNA replication. Studies conducted by a scientist named Taylor are significant and we should know in detail about that. He conducted experiments using radioactive thymidine on root tip cells of faba beans. He also proved the semi-conservative nature of DNA replication.