Question 1
In human females, one of the sex chromosomes is switched off during early development in a phenomenon called
◦ karyotyping.
◦ X inactivation.
◦ X linkage.
◦ crossing over.
◦ SRY activation.
Question 2
In karyotyping, individual chromosomes may be distinguished from others by
◦ a comparison of chromosome lengths.
◦ bands produced on chromosomes by differential staining.
◦ the position of centromeres.
◦ the relative lengths of the "arms."
◦ all of these.