Chromosomes

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Review:

Write the complementary base sequence to the following (no spaces or commas)

ATTCGG

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How many chromosomes does a human have?

Multiple Choice

Which of these correctly orders these structures from smallest to largest?

• chromosome < nucleotide < codon < gene

• codon < nucleotide < gene< chromosome

• gene < codon < chromosome < nucleotide

• nucleotide < codon < gene < chromosome

• chromosome < codon < gene < nucleotide

Multiple Choice

Bob has Huntington disease and carries the gene for this on his 4th chromosome. Bill does not carry this gene on his 4th chromosome.

Which of the following is true?

• Bill does not have this disease because he does not have the gene

• Bill could have this disease since the gene could be found on another chromosome

Multiple Choice

One of your genes determines your eye colour. What type of chromosome is likely to carry that information?

• Autosome

• Allosome

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Dogs typically have 78 chromosomes and have the same allosome types as humans.

How many autosomes do dogs have?

Poll

How well did you understand this lesson?

• 1 (not very well)

• 2

• 3

• 4

• 5 (very well)