Have an account?
Skip to Content
Build your own quiz
Suggestions for you
14 questions
Show Answers
See Preview
- 1. Multiple Choice
What is the primary cause of genetic variation during meiosis?
chromosomes lining up
"crossing over" of chromosomes
separation of chromosomes
chromosomes pulling apart
- 2. Multiple Choice
The process of "crossing over" occurs in what phase of meiosis?
anaphase 1
prophase 1
prophase 2
telophase 2
- 3. Multiple Choice
A pair of identical chromosomes (one inherited from mom and one inherited from dad) are called ______________________________.
sister chromotids
centromeres
homologous chromosomes
autosomes
- 4. Multiple Choice
The failure of one or more pairs of homologous chromosomes or sister chromatids to separate "normally" during meiosis is called _____________________.
nondisjunction
anaphase I
nondiploidy
karyotype
- 5. Multiple ChoiceThis karyotype shows Trisomy 21This karyotype has no abnormalityThis karyotype is missing a sex chromosome (monosomy x)This karyotype is from a gamete
- 6. Multiple ChoiceBased on the Karyotype shown, at which chromosome pair can we identify a genetic disorder?Chromosome pair 5sex chromosomesChromosome pair 21There are no chromosomal disorders
- 7. Multiple ChoiceWhich statement is NOT true about KaryotypesChromosomes (pairs 1-22) are arranged by sizeSex chromosomes are found at the endA normal karyotype has 46 chromosomes or 23 pairsHaving missing or extra chromosomes does not indicate a disorder
- 8. Multiple ChoiceWhat is the chromosomal condition of the individual whose karyotype is seen in the image?Monosomy X (Turner's Syndrome)Trisomy 21 (Down's Syndrome)Trisomy 13 (Patau Syndrome)Trisomy 18 (Edwards's Syndrome)
- 9. Multiple ChoiceA pair of identical chromosomes shown in a karyotype, one inherited from mom, and one inherited from dad are calledsister chromotidscentromereshomologous chromosomesautosomes
- 10. Multiple ChoiceNondisjunction can result intrisomy conditionsmonosomy conditionsadditional sex chromosomesall of these
- 11. Multiple ChoiceWhen chromosomes fail to separate correctly during anaphase of meiosis, what can occur?extra chromosomes are found in the sex cellchromosomes of the sex cell are doubledchromosomes of the sex cell are halvedmeiosis never completes
- 12. Multiple ChoiceDown's syndrome occurs because of a(n)missing sex chromosomeextra sex chromosomeadditional 21st chromosomeadditional 18th chromosome
- 13. Multiple ChoiceThe phase in mitosis where chromosomes move away and are pulled apart by spindles to opposite sides of the cell.prophaseanaphasemetaphasetelephase
- 14. Multiple Choice
What would you call the failure of one or more pairs of homologous chromosomes or sister chromatids to separate normally during meiosis?
nondisjunction
anaphase I
nondiploidy
karyotype
- Answer choicesTagsAnswer choicesTags