1/4 = 25%, 2/4 = 50%, 3/4 = 75%, 4/4 = 100%
<span>A
gradual change in phenotype over a geographical area is called a cline (or clinal variation).</span>
A
cline is gradual phenotypic (and/or genetic) differences over a geographical
area. It usually happens as a result of the change of allele frequencies within
the gene pool.
<span>Only a single amino acid could change, because the reading frame is unaffected</span>
soil contains microorganisms decaying organic matter, earthworms and other insects. soil is a living environment, The earthworms and insects aerate the soil and add to the organic matter of soil through their waste and when their bodies decay.
Answer:
The correct answer will be option-F.
Explanation:
The DNA transformation is the horizontal transfer of DNA in which the DNA is taken up by the competent bacterial cells from the surrounding.
The transformation process was studied by the Griffith in 1928 in <em>Streptococcus pneumoniae</em>- R and S- strains in which R-strain bacteria took the DNA from the surrounding environment and became S-strain.
The cells become competent by changing their cell wall composition and take DNA after which the DNA gets integrated with the genome of the bacteria through homologous recombination. The bacteria thus acquires the new feature as a result of this integration with genome which is transferred to the offsprings.
Thus, option-F is the correct answer.
