1. what clue to the presence of certain genetic disorders can be seen in karyotype? 2. why might a lab worker attempting to diagnose a genetic disorder prefer to work with photographs of chromosomes rather than the chromosome themselves? 3.why would it be much difficult to construct a karyotype of unstained chromosomes?
I wish you added the diagram but I can tell that the long strings are the spindle fibres.
Answer: The answer is c
Explanation:
DNA replication is semiconservative and at such, complementary base-pairing ensures that if adeinine is found on one strand, thymine is found on the other, and if guanine is found in one strand, cytosine is found on the other. complementary base pairing also helps to hold the double helix together by the formation of hydrogen bonds.