Answer:
Hey!
Your answer is 800+ (more than 800)
Explanation:
These different enzymes have been collected to recognize and to then cut more than 100 different restriction sites.
What are restriction sites?
Restriction sites, are mainly located on DNA molecules which contain specific sequences of nucleotides...
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Answer:
B: directional selection is a process by which one of the extreme variations of a trait is favored
Explanation:
Answer:
One possible explanation for why <u><em>maternal age</em></u> is a primary risk factor for autosomal trisomy is that oocytes remain in meiosis I until ovulation, which could take<em> place many years after birth, making them more susceptible to damage.</em>
Explanation:
Increasing age becomes a risk for abnormal children like children with autosomal trisomy because as the age of the female increases, the chances of abnormal division of chromosomes in the egg of the female also increases. After the age of 30, the chance of having a baby with autosomal trisomy increases exponentially. The risk primarily increase because of the abnormalities in meiosis in the women.
The correct answer is: a. using a photographic negative to make a positive image
A negative image is a total inversion of positive image (normal image). Negatives are normally used to make positive prints.
This can be compared to copying mechanism of DNA-replication of DNA in which one strand of DNA (e.g. 3’-5’ orientation) is used as a template to make new strand with opposite orientation (5’-3’).
Most developing countries have abundant renewable energy resources, including solar energy, wind power, geothermal energy, and biomass, as well as the ability to manufacture the relatively labor-intensive systems that harness these.
