Practice Quiz for
Recombination and Linkage

No. of Questions= 6
INSTRUCTIONS: To answer a question, click the button in front of your choice. A response will appear in the window below the question to let you know if you are correct. Be sure to read the feedback. It is designed to help you learn the material. You can also learn by reading the feedback for incorrect answers.

1 Which of the following statements is true concerning biological inheritance?
a) Each human somatic cell contains one of each type of chromosome.
b) When sex cells are produced, paired homologous chromosomes separate so that each gamete contains only one of the pair of alleles for each trait.
c) Brothers and sisters frequently have exactly the same combination of chromosomes.
2 The only people who likely would be genetically identical are ______________________ twins.
a) monozygotic
b) dizygotic
c) monozygotic and dizygotic
3 The inheritance of new combinations of alleles in children results from:
a) puberty
b) recombination
c) genetic linkage
4 Linked genes are:
a) located on different chromosomes of the same size and shape
b) located on the same chromosome
c) rarely inherited together
5 Crossing-over of parts of chromosomes:
a) has no effect on genetic linkage
b) usually decreases the number of genetic combinations in a population
c) can increase the number of genetic combinations in a population
6 Crossing-over resulting in the inheritance of altered chromosomes by children occurs:
a) during mitosis
b) during meiosis
c) both of the above



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