Genetics Self Exam
Dr Jamie Love First Quarter - Cytogenetics © 2002 - 2010
Hello and welcome to your first exam.
Self Evaluation Test - Pretest info
When you choose an answer you will get a "pop-up" response indicating whether you got it right or wrong and provides feedback. This immediate feedback is a learning tool so read each reply carefully. I suggest that the first time you take the test, you simply stick with your original answers, complete the test and submit it for a grade. This will give you an idea of what you have learned so far and is more like a "regular" test. (Whatever that is.
Important note : on some browsers when you use the page down button to scroll down you will end up shifting your checked answer to the next one down the line! If that happens to you, use your mouse to scroll - not the keyboard.
Self Evaluation Test
Choose the best answer by selecting one of the buttons. When you get to the bottom of the page, submit your answers.
1 : Humans are a(n) _________ species.
2 : Between cellular divisions a cell usually ...
undergoes mitosis or meiosis.
All the above.
3 : A zygote is a ...
phase in mitosis.
phase in meiosis.
phase in the cell cycle.
single cell created by the union of a sperm cell and an egg cell.
4 : A eukaryote chromosome at metaphase consists of ...
single stranded DNA.
two chromatids joined by a centromere.
a single chromatid.
5 : Mitosis produces ...
two identical cells.
two identical nuclei.
two non-identical cells.
two non-identical nuclei.
6 : Meiosis ...
produces diverse nuclei.
is required for sexual reproduction.
involves two nuclear divisions to be completed.
All the above.
7 : A centromere is ...
an organelle outside the nucleus required in nuclear division from which spindle fibers grow.
the center of a chromosome (dyad) where the sister chromatids meet.
composed of two centrioles.
visible as dark areas of chromatin in the nucleus.
8 : DNA is replicated during ...
9 : Once anaphase of mitosis is complete the cell has ...
half as many chromosomes as it did before anaphase.
half as much DNA as it did before anaphase.
twice as many chromosomes as it did before anaphase.
twice as much DNA as it did before anaphase.
10 : Prophase is the phase of mitosis when ...
nuclear membrane breaks down and chromatin condenses into chromosomes.
chromosomes line up along the equatorial plate.
dyads split (at the centromere) causing sister chromatids to move to opposite poles.
None of the above.
11: There is only one kinetochore at the centromere of each chromosome ...
during metaphase of mitosis.
during metaphase of meiosis I.
during metaphase of meiosis II.
never! The centromere always has two kinetochores.
12 : Excluding the sex chromosomes, the pair of maternal and paternal chromosomes...
are identical in size and appearance.
produce a tetrad at meiosis I.
have identical loci.
All of the above.
16 : The cell above is from the anaphase II (meiosis) of a species that has a diploid number of _____ and a haploid number of _____.
17 : The long arm of a chromosome is called the "__" arm and the short arm is called the "__" arm.
18 : A locus is a __________.
position on a chromosome
the plural of loci
constantly changing part of the genes
None of the above are correct.
19 : When a cutting is used to propagate a plant it is a form of ...
20 : A life cycle that alternates between haploid and diploid stages is defined as ...
alternation of generations.
You can now submit your exam to for grading. If your answers were less than perfect you will receive a score and a list of Incorrect (and Correct) replies. Then you can use your "Back Button" to return to this page and correct your earlier errors. Once you have corrected all your earlier errors (by rechoosing a correct answer when you were told you are wrong), you will get a perfect score.