Feel like swimming in the gene pool? Take the quiz!

CORRECT ANSWERS: 0

Our genes can tell us detailed things about ourselves. Take our ultimate gene quiz to see how much you know about how our genes work and what they tell us about ourselves.

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Question 1 of 20

The rough draft of the complete human genome was unveiled in:

1995
2000
2005

... The rough draft of the complete human genome was unveiled in 2000, whereupon U.S. President Bill Clinton said that the data should be available to all.

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Question 2 of 20

Humans have approximately the following number of genes:

12,000
22,000
2,000

... Humans have approximately 22,000 genes in their DNA.

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Question 3 of 20

The Human Genome Project began in:

1955
1979
1989

... The Human Genome Project began in 1989.

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Question 4 of 20

Roundworms have the following number of protein-coding genes:

5,000
20,000
30,000

... Roundworms have 20,000 protein-coding genes -- not far behind humans.

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Question 5 of 20

Mutations in the BRCA genes are linked to:

several types of cancer
only breast cancer
only pancreatic cancer

... Mutations in the BRCA genes are linked to several types of cancer, most notably breast cancer.

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Question 6 of 20

A human being has the following number of chromosomes:

16
23
46

... A human being has 46 chromosomes -- two sets of 23 each.

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Question 7 of 20

Mitrochondrial DNA, or mtDNA, is passed down from:

from mothers only to sons
from fathers only to sons
from mothers to sons and daughters

... Mitochondrial DNA is passed down from mothers to both sons and daughters.

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Question 8 of 20

Y-DNA is passed down:

from mothers to all children
from fathers to sons
from both parents to all children

... Because only males have Y-chromosomes, Y-DNA is passed down only from fathers to sons.

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Question 9 of 20

In order to study the genes they share with humans, scientists often tinker with the genomes of:

mice
sharks
scorpions

... Scientists often tinker with the genomes of mice, which share many genes with humans and are easy to breed.

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Question 10 of 20

The final draft of the human genome was presented in:

2000
2003
2009

... The final draft of the human genome was presented in 2009.

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Question 11 of 20

Humans have the following percentage of genes in common with great apes:

58 percent
88 percent
98 percent

... Humans and great apes share about 98 percent of the same genes.

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Question 12 of 20

The BRCA and p53 genes are known as:

tumor suppressors
tumor stoppers
tumor generators

... The BRCA and p53 genes are often referred to as 'tumor suppressors.'

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Question 13 of 20

Multifactorial genetic disorders are caused by:

one defective gene
multiple defective genes
multiple defective genes and possibly environmental factors

... Multifactorial genetic disorders are caused by multiple defective genes and possibly environmental factors.

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Question 14 of 20

Down syndrome is an example of which type of genetic disorder?

multifactorial
chromosome abnormality
mitochondrial

... Down syndrome is a genetic disorder that's the product of a chromosome abnormality.

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Question 15 of 20

Mitochondria are known as:

the cell's powerhouse
the cell's kidney
the cell's janitor

... Because they provide energy to cells, mitochondria are known as the powerhouse of the cells.

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Question 16 of 20

All humans can trace their lineage back to a single population from which continent:

Asia
Europe
Africa

... Humans can trace their lineage back to a single population from the African continent.

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Question 17 of 20

Our human ancestors left the African continent:

20,000 years ago
60,000 years ago
100,000 years ago

... Our human ancestors left the African continent approximately 60,000 years ago.

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Question 18 of 20

An allele is:

an abnormal gene
a variation of a gene
a cell's nucleus

... An allele is a variation of a gene, which usually can present itself in at least two possible forms.

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Question 19 of 20

The study of the genetic profiles of multiple species is known as:

comparative genomics
multigenealogy
interspecies genetics

... Comparative genomics is the study and comparison of the genomes of different species.

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Question 20 of 20

Studies have shown that a human's lifespan is likely affected by:

one gene
multiple genes
no genes

... Various studies have shown that, in addition to environmental and experiential factors, multiple genes likely affect lifespan.

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