ssignmentsSign In QUESTION 1 the deviation between observed and expected resulit

Question

ssignmentsSign In QUESTION 1 the deviation between observed and expected resulits is In a Chi square test if the chi square value is due to chance and insignificant 0ALess than .5% @ B. More than..5% than the O C Less than. the critical value O D More than.. the critical value QUESTION 2 Two highly inbred strains of mice, one with black fur and the other with gray fur, were crossed, and all of the offspring had black fur Predict the outcome of intercrossing the offspring A Black gray:31 O B. Gray: black:31 C. All gray o DAu black

Explanation / Answer

1- The correct answer is option A that is less than and 5%.

As it is less than 5% it is merely a chance and we can not accept the null hypothesis.

2) As all the offsprings in F1 is black then black is dominating allele. Let's assume it B and gray fur genotype is bb.

BB x bb results in Bb that is all black fur mice. When interbred that is Bb x Bb the resulting progenies will be BB, Bb, Bb and bb that is three black and one gray. So, the answer is option A that is Black:gray = 3:1

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