Question

Multicellular organisms that carry a specific genetic change in each cell because of an intervention at the embryo level are a:

A. Transversion

B. Transition

C. Transgenic

D. Transformant

Answer 1

Hint: Genetically modified, genetically engineered and transgenic organisms are often used interchangeably; yet, they do not mean the same thing. one that had its genetic material altered through any method, including conventional breeding is called a genetically modified organism. And the one that has been genetically modified using recombinant DNA technology is called a genetically engineered organism. A transgenic organism is genetically engineered by using a foreign gene, mostly belonging to distinct species.


Complete- Step-by Step-Answer:
A transgenic organism is an organism that carries a genetic manipulation made by scientists. These manipulations are usually finished at the fertilized egg stage because manipulations at this stage will be handed on to all different cells in the physique of the organism as it develops. The recombinant DNA molecules are transferred into host cells (often bacterial or yeast cells) in which the chosen replicon can undergo DNA replication independently of the host chromosome. This process is called transformation and the cells are called transformants.

Transition is a type of point mutation that changes a purine nucleotide to another purine for example adenine changes into guanine or a pyrimidine changes with another pyrimidine for example cytosine changes with thymine. A transversion is also a point mutation in DNA in which a single purine is changed for a pyrimidine or vice versa. It can be spontaneous or can be caused by ionizing radiations or alkylating agents.


Hence, the correct option is ( C ) Transgenic.

Note: A transgenic, or genetically modified, organism has been altered through recombinant DNA technology, which entails the combining of DNA from unique genomes or the insertion of overseas DNA into a genome.