Question

1. biogeneticists use a variety of genetic procedures. which of the following rows describes the process of cloning, gene splicing and gene mapping respectively?

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$$\begin{tabular}{|l|l|l|l|} \\hline row & cloning & dna splicing & gene mapping \\\\ \\hline a. & nucleus of a body cell implanted into an egg & dna sequence added to the cells of an organism & identification of genes on the chromosome of an organism \\\\ \\hline b. & section of foreign dna inserted into the dna of an organism & identification of genes on the chromosome of an organism & picture of chromosomes \\\\ \\hline c. & identification of genes on the chromosomes of an organism & picture of chromosomes & nucleus of a body cell implanted into an egg \\\\ \\hline d. & picture of chromosomes & nucleus of a body cell implanted into an egg & dna sequence added to the cells of an organism \\\\ \\hline \\end{tabular}$$

Explanation:

Define cloning process

Cloning involves creating genetically identical copies.
Somatic cell nuclear transfer implants a body cell nucleus into an egg.

Define DNA splicing

DNA splicing inserts foreign DNA into an organism's genome.
This adds a new DNA sequence to the cells.

Define gene mapping

Gene mapping locates specific genes on chromosomes.
It identifies gene positions on an organism's chromosomes.

Match definitions to table rows

Row a correctly matches all three processes in order.
Other rows mix up these biological definitions.

Answer:

• (a) Cloning: Nucleus of a body cell implanted into an egg | DNA Splicing: DNA sequence added to the cells of an organism | Gene mapping: Identification of genes on the chromosome of an organism (Correct answer)
• (b) Cloning: Section of foreign DNA inserted into the DNA of an organism | DNA Splicing: Identification of genes on the chromosome of an organism | Gene mapping: Picture of chromosomes
• (c) Cloning: Identification of genes on the chromosome of an organism | DNA Splicing: Picture of chromosomes | Gene mapping: Nucleus of a body cell implanted into an egg
• (d) Cloning: Picture of chromosomes | DNA Splicing: Nucleus of a body cell implanted into an egg | Gene mapping: DNA sequence added to the cells of an organism