These questions will be similar to the ones on test 5. (Ch 12 : DNA and Ch 16: Human Genetics).
1). What is "aneuploidy" ? _______________________________________________
2). Which blood group can receive blood from anyone?
a) group A b) group B c) group O d) group AB
3). If your mother is blood group B and your father is blood group AB,
which blood group could you not have?
a) group A b) group B c) group O d) group AB
4). DNA polymerase enzyme starts at the ___ of the original DNA :
a) 2’ end b) 3’ end c) 4’ end d) 5’ end
5). What is a disadvantage of fetal testing? __________________________
6). When did Barbara McClintock show that genes were on chromosomes?
a) 1928 b) 1941 c) 1953 d) 1957
7). Give an example of aneuploidy where the person has only 45 chromosomes:
________________________________
8). Which genetic disease affects the lungs? __________________________
9). Which chromosome carries the gene for sickle cell anemia ?
a) chromosome 4 b) chromosome 7 c) chromosome 11 d) chromosome 9
10). Which of the following couples is most likely to have a baby with
Down syndrome ?
a) father aged 44, mother aged 27 b) father aged 24, mother aged 33
c) father aged 25, mother aged 30 d) father and mother both aged 18
11). Which drug prevents Rhesus problems? ________________________
12). If you are blood group B, what two genotypes could you have?
_____________________________________________
13). If you are Rhesus factor positive, and homozygous, what percentage of
your children will be Rhesus negative if your spouse is Rhesus negative?
a) 0 % b) 25 % c) 50 % d) 100 % e) 75 %
14). What antibodies are there in the blood of someone who is blood group O ?
a) none b) anti-A only c) anti-A and anti-B d) anti-B only
15). Huntington's disease affects the ________________ and is caused by
a gene on chromosome ___________.
16). Which enzyme joins together the Okazaki fragments? _________________
17). Which scientist showed that DNA is the genetic material of some viruses?
a) Wallace b) Griffith c) Chase d) Mendel e) Wilson
18). What does pathogenic mean?
___________________________________________________________________
19). Which of the following is true for a trait caused by a dominant gene:
a) you must inherit two copies of the allele to have that trait
b) it must be more common in men than in women
c) someone who is heterozygous is a carrier
d) if you have that trait, one of your parents must have that trait
20). People with genotype XYY suffer from _______________ syndrome.
21). In chorionic villus sampling, cells are removed from the :
a) mother’s blood b) fetus’s body
c) amniotic fluid d) placenta
22). The structure of DNA was worked out in 1953 by Francis Crick, James
Watson and ____________________________________
23). What does “semi-conservative” mean, in respect to DNA replication?
____________________________________________________________________
24). If your father has Huntington's disease, and is heterozygous, and your
mother is normal, what is the risk that you will inherit the disease?
a) 25 % b) 0% c) 50 % d) 100 % e) 75%
25). Frederick Griffith did an experiment in 1928 with __1__ that showed
that __2__.
a) Streptococcus ; DNA is the genetic material of some viruses
b) viruses ; chemicals can change cells to different types
c) Streptococcus ; chemicals can change cells to different types
d) viruses ; DNA is the genetic material of some viruses