Lab 7

Question 1

What is the chi-square test

Answer 1

A statistical test to determine the “goodness” of fit between observed values and expected results based on a hypothesis

Question 2

What is the hypothesis of a chi-square test

Answer 2

Null hypothesis that there will be no statically significant difference in any difference we observe (any difference are due to chance alone)

Question 3

What does it mean if the percent from the chi-square test is above 5%

Answer 3

The results are likely due to chance alone and we can fail to reject the null hypothesis

Question 4

What does the x^2 value from the chi-square test tell us

Answer 4

It is the A value, to determine the percent you must determine the degrees of freedom and use the chi-square table to find the p value (p value x 100 = percentage due to chance alone)

Question 5

What is meiosis

Answer 5

The process by which the full genetic complement of a germ cell is divided amongst 4 daughter cells (diploid to haploid)

Question 6

What is a homologous pair

Answer 6

Maternal and paternal chromosomes are indistinguishable from each other in terms of size and form

Question 7

What are the 2 main genetic functions of the meiosis process

Answer 7

1) diploid to haploid (segregation of alleles)
2) crossing over and random movement of non-homogenous chromosomes

Question 8

What are gene loci

Answer 8

Genes that lie at discrete locations

Question 9

Metacentric vs acrocetric chromosomes

Answer 9

Metacentric: has arms on either side of the centromere of equal length
Acrocentric: arms of different lengths