10 Questions
From each parent, how many chromosomes do you inherit?
23
What do we call matching pairs of chromosomes?
Homologous chromosomes
What determines whether an individual is male or female?
Sex chromosomes (X and Y)
How many sex chromosomes do females have?
Two X chromosomes
How many sex chromosomes do males have?
One X and one Y chromosome
Where do homologous chromosomes come from?
One from each parent
What is the structure that homologous chromosomes have in the same position?
Centromere
What do homologous chromosomes have at the same location along their length?
Genes for particular characteristics
From which parent does a baby boy inherit its Y chromosome?
Male parent
What syndrome is shown in a karyotype with three copies of chromosome #21?
Down Syndrome
This quiz covers topics related to DNA as the molecule responsible for heredity, including identifying the parts of a nucleotide and missing bases. It also touches on the functions of the cell nucleus and chromosomes.
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