SUVA SANGAM COLLEGE
YEAR 12
BIOLOGY
WORKSHEET 1
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The diagram below shows human chromosomes arranged in two karyotypes.
Use the karyotypes to answer the questions that follow.
(a)
State two features that can be used to arrange the chromosomes into a karyotype.
(b)
Identify the gender of both karyotypes.
(c)
Which karyotype has a disorder? Give a reason for your answer.
(d)
Name the disorder and give 2 physical characteristics of a person suffering from that disorder.
What is the purpose of each of the following activities while viewing under the microscope?
(a)
using a cover glass over a specimen on a slide.
(b)
squashing a specimen before examining it.
(c)
staining a specimen before examining it.
List the FOUR steps in correct sequence that are involved in preparing a wet
mount of an onion cell to be viewed under the microscope.
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