Well I think in production of gamete male the produced gamete will have identical genetical characters of the queen be, but in meiosis genetic variation occur due to crossing over
Example - the relatively rigid covering of a plant cell, containing cellulose, hemicellulose, lignin, etc.<span>
non example - </span><span>Mycoplasma because it has no cell wall</span>
Someone who is blood type<span> B could have a </span>genotype<span> of either BB or BO. A </span>blood <span>test of either </span>type<span> AB or </span>type<span> O is more informative. Someone with </span>blood type<span> AB must have both the A and B alleles.</span>
Answer: Scientists think that early amphibians had lungs becuase they needed efficient oxygen uptake to support their metabolism. Higher rates of metabolism are needed on land, becuase of this scientist think that early amphibians breathed air with lungs.
Explanation:
Answer:
B. The smaller DNA pieces travel farthest towards the positive end of the box
Explanation:
Gel-electrophoresis technique is a technique which is used to separate the fragments of DNA based on their size. The technique is employed in the DNA fingerprint analysis.
The DNA samples are loaded on one side of the gel and when an electric current is applied, the DNA moves from the wells towards the electrodes.
The DNA is a negatively charged molecule which travels through pores in the gel and reaches towards the electrode with positive charge.
The smaller the size of the DNA fragment, the faster it moves.
Thus, Option-B is correct.