Description

GENE201 Module 2 M2A1: mtDNA and X-DNA Quiz

This quiz helps evaluate your understanding of mtDNA and X-DNA, including the unique inheritance pattern of each type of DNA.

This is a 10 question multiple-choice quiz. You will get 15 minutes to complete all the quiz questions. Once the quiz is opened, it must be completed. You can attempt only one question at a time. Read the following questions and select the best answer.

You will be evaluated based on your responses to the quiz questions. Collectively, quizzes are worth 15% of your final grade.

How is mtDNA inherited?
a. From father to son only
b. From father to all children
c. From mother to daughter only
d. From mother to all children

What name is given to the mtDNA ancestor of all humans alive today?
a. Y-DNA Adam
b. Mitochondrial Eve
c. DNA Eve
d. Most Recent Common Ancestor

Which of the following can you NOT do with mtDNA testing?
a. Determine your mtDNA haplogroup
b. Find people in the testing company database sharing your mtDNA
c. Analyze your paternal line
d. Analyze genealogical questions

Why is mtDNA not useful for finding random genetic cousins in a testing company’s database?
a. It mutates very slowly
b. No one does mtDNA testing
c. Everyone’s mtDNA is unique
d. mtDNA testing is expensive

Is it true or false that two exact mtDNA matches will be descended from a common maternal relative within the past few generations.
a. True
b. False

True or False, only women have an X chromosome
a. True
b. False

Which of the following statements are incorrect?
a. A woman will share a full X chromosome with her paternal grandmother
b. A mother always recombines her X chromosomes before passing them down
c. Paternal siblings (full or half) will share a full X chromosome
d. Men have only one X chromosome to pass down to the next generation

What current genealogy test is available for purchase and sequences the X chromosome?
a. Mitochondrial DNA test
b. Y Chromosome test
c. X Chromosome test
d. Autosomal DNA test

Why is X-DNA potentially useful in genealogical research?
a. Because we always know where our X-DNA came from.
b. Because we inherited our X-DNA from a small subset of our ancestors.
c. Because X-DNA is always inherited from a child’s father.
d. Because X-DNA is more powerful than autosomal DNA.

True or False? mtDNA and X-DNA come from the same ancestral line.
a. True
b. False