Answer:
A chromosome is an organized package of DNA found in the nucleus of the cell. Humans have 23 pairs of chromosomes--22 pairs of numbered chromosomes, called autosomes, and one pair of sex chromosomes, X and Y.
Explanation:
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The answer is reproductive isolation. Reproductive isolation ensures members of different species do not produce offspring. In this case, geographical separation is ensuring that individuals from the two different populations are not able to mate with each other. Eventually, through different selective pressures, the two populations will diverge sufficiently in genotype to become distinctly different.
        
             
        
        
        
Answer:
Ans:
Explanation:
Make your voice heard by those in power. ...
Eat less meat and dairy. ...
Cut back on flying. ...
Leave the car at home. ...
Reduce your energy use, and bills. ...
Respect and protect green spaces. ...
Invest your money responsibly. ...
Cut consumption – and waste.
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Answer:
BbxBb.
Explanation:
If Bb gene is crossed with Bb, the offspring is produced with normal hearing because both the genes are recessive in which the deafness gene hide and the hearing gene is dominant so the offspring can hear sounds clearly. The dominant A gene is responsible for deafness and we can see the offspring BbxBb in which no dominant gene is present. The other three offspring are deaf because of the presence of dominant A gene in their genetic makeup.