Sister chromatids first appear during the S phase of the cell cycle.
Answer:
Black hair
Explanation:
(In most cases) A child from red+black haired parents would have black hair. The allele for black hair is dominant to that of red, and would be the phenotype of the hair.
Answer:
Nitrogen is present in the atmosphere in a molecule form about 78 percent. This nitrogen comes to the earth with the water through rainfall. Some nitrogen fix by beneficial microorganisms such as Cyanobacteria and Azotobactor which are present in the roots of higher plants. These microorganisms convert nitrogen molecule into nitrates and used by the plants. There are some other microorganisms which again convert nitrate into nitrogen molecules, called denitrifying bacteria and nitrogen molecule goes to the atmosphere again and complete the cycle.
Answer: none of the above
Explanation:
None of the above
Answer:
reproduction is the process which creates new organisms from the existing ones
