Manipulating the DNA inside cells to improve production of materials or the material itself is called
.
genetic engineering
In Sexual reproduction evolution takes place.
Explanation:
In sexual reproduction, the gametes from the two parents fuse to form a zygote and consequently an organism. The gametes from the two parents provide different alleles for a trait. The different genetic variant or alleles found will cause genetic variation.
The offspring can survive and adapt to the new environment. This leads to natural selection and evolution.
In asexual reproduction changes only occur if mutation takes place otherwise the progeny remains genetically identical so less chance of evolution.
Analogous are the organs having similar function but different origin in different organisms.
Detrimental effects are small or negligible effect of mutation on organism due to the exposure of chemicals or rays.
Only those mutations are heritable which occur in germ cells, mutations of somatic cell do no pass to other generation. Detrimental effect is mainly seen in somatic cells.
When a scientist say's organisms have the same universal genetic code it mainly means that the
"organisms use the same four nucleotide bases." Now <span>organic molecules that serve as the monomer units for forming the nucleic acid polymers.
Hope this helps!
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