Select the correct match :
- G. Mendel - Transformation
- Ribozyme - Nucleic acid
- T.H. Morgan - Transduction
- $F_2 \times $ Recessive parent - Dihybrid cross
The Correct Option is B
Solution and Explanation
The question asks to select the correctly matched pair from the given options. Let's evaluate each option one by one:
- G. Mendel - Transformation: Gregor Mendel is known as the father of genetics and is famous for his work on inheritance patterns in pea plants, particularly his formulation of the laws of inheritance. "Transformation" is a concept related to the uptake of external genetic material by a cell, which is not related to Mendel’s work.
- Ribozyme - Nucleic acid: Ribozymes are RNA molecules that have the ability to catalyze specific biochemical reactions, similar to the action of protein enzymes. Since ribozymes are composed of nucleic acids, this is the correct match.
- T.H. Morgan - Transduction: Thomas Hunt Morgan is well-known for his work with Drosophila (fruit flies) and establishing the chromosomal theory of inheritance. Transduction, however, is a method of horizontal gene transfer in bacteria mediated by bacteriophages, which does not relate to Morgan's primary contributions.
- $F_2 \times $ Recessive parent - Dihybrid cross: This option suggests a genetic test cross, not specifically related to a dihybrid cross. In a dihybrid cross, individuals heterozygous for two traits are crossed to observe independent assortment, not a test cross with a recessive parent.
Therefore, the correct option is Ribozyme - Nucleic acid, as it accurately describes the relationship between ribozymes and their nature as RNA molecules with catalytic functions.
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Concepts Used:
The Molecular Basis of Inheritance
DNA Replication:
DNA synthesis is commenced at particular points within the DNA strand referred to as ‘origins’, which are certain coding regions. There are numerous origin sites, and when replication of DNA starts, these sites are mentioned as replication forks. Within the replication, the complex is the enzyme DNA Helicase, so that they can be utilized as a template for replication. DNA Primase is another enzyme that's essential in DNA replication.
RNA:
Ribonucleic acid (RNA) is an essential biological macromolecule that exists all together in biological cells. It is principally involved in the synthesis of proteins, that carry the messenger instructions from DNA, which itself contains the genetic instructions needed for the event and maintenance of life. In some viruses, RNA, in spite of DNA, carries genetic information.
Genetic Code:
Genetic code is the term we use in the manner that the four bases of DNA--the A, C, G, and Ts--are strung together in a way that the ribosome, the cellular machinery, can read them and switch them into a protein. In the ordering, every three nucleotides during a row count as a triplet and code for one amino alkanoic acid.
Read More: Molecular Basis of Inheritance