Answer:
All are correct
Explanation:
The complete question is
In your experiment, you tested this hypothesis:
Hypothesis: If either parent mouse passes a dominant allele, then the offspring will have black fur.
You confirmed the above in steps 1 through 3, in which you changed the genotypes of the
parents and predicted the fur color, or phenotypes , of the offspring.
In steps 4 and 5, you reversed the process. You were shown the parents and offspring above. You did a (test cross) to identify the genotypes of the parents.
Solution -
The above experimental design can be improvised for obtaining best result in the following ways
a) The sample size is very small, therefore the number of mice breeds must be increased in the experiment
b) If results for one trait are not as per expectations, it would be advisable to look for another trait in the mice.
c) Another thing which can be done is to look for the same trait in another mice species this will allow to remove skewness in experiment.
d) In Darwin's experiment, certain traits appeared after few generations of crossing, the same concept should be applied here and the traits must be looked for in the coming generations.
Hence, all the given options are correct
