Solved by a verified expert:A black-coat female mouse was crossed with
a black coat male mouse. All the female offspring were black but half of the
male offsprings were white. Which of the following statement is NOT true
1.
The coated mother was
heterozygous for the colour Black
2.
The gene for black is located
on the X chromosome
3.
The daughters of a white mother
and white father will be white
4.
Black coat is dominant over
white
5.
The sons of a white coat father
will be white
Non-Mendelian F-MCQ1
The gene for colour red in the fruit fly’s
eye is located on the X chromosome. A homozygous red eye female was crossed
with a white eye male. The F1 generation was crossed. What percentage of white
eye female do you expect to see in the F2
1.
100%
2.
75%
3.
25%
4.
0%
Modified
dihybrid
The kernel on a cob can either be Purple
(dominant colour) or yellow (recessive colour) or pink (intermediate colour ).
It is known that the colour purple is the product of a two step reaction with
pink being the intermediate product. You counted 1600 kernels on F2 cobs. Answer
the following questions below:
1.
How many purple kernel would
you expect to find?
2.
How many pink kernel would you
expect to find?
3.
How many yellow kernel would
you expect to find?
4.
What colour would be double
homozygous recessive cob be?
5.
What colour would the F1 cob
be?
Options are: 400, 900, 100, 800, 300, pink,
purple, pink and purple, yellow
Recent Comments