Sample Answers:

 

 

Hopefully the practice helps.   

1.  E

 

2.  E

 

3.  A

 

4.  C

 

5.  A

 

6.  D   Undertake a true test cross with short stalked, thin leafed barley plant  to see if any recessive traits are present

 

7.  C   6 out of the 16 have the required genotypes 

 

8.  D

 

9. C   The probability of having a male offspring is  0.5 or 50%. The probability of passing on the X chromosome with the colour blind trait is 0.5 or 50 %....  multiply probabilities... 0.5 * 0.5 = 0.25 or 25% 

Section 1B.

  In the next several questions each question is worth 3 pts
  Please “clearly” indicate your evaluation of the statement given.
  If you believe the statement to be “False” then you MUST explain why you think so in the space provided.

 

11.   In Prophase I of MEIOSIS chromosomes condense, "homologous" chromsomes pair off and are able to recombine.

                    A.  TRUE                                                  B.   FALSE

_______________________________________________________________________________

 

12.   Mendel's 1st Law is the law of "independent assortment"

                    A.  TRUE                                                   B.  FALSE

__________Mendel's 1st law is the "law of segregation"________________________________

 

13.   The environment RARELY IF EVER plays a role in determining the GENOTYPE for a given trait

                    A.  TRUE                                                  B.   FALSE

_______________________________________________________________________________

 

 

 

 

 

 

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