AP Bio Ch 12 Chromosome & Genes
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In chapter 12 of the AP Biology class we got to cover chromosomes and genes in the human body. A chromosome contains hundreds to thousands of genes. Take up the quiz below on this chapter and remind yourself on what we covered before the assessment test coming up next week.
- 1.Marfan's disease in humans, with its numerous effects, is an example of
- A.
Dominance modification.
- B.
Incomplete dominance.
- C.
Epistasis.
- D.
Pleiotropy.
- E.
Polygenic inheritance.
- 2.A classical example of multiple alleles is
- A.
Coat color spotting in cattle.
- B.
Height in garden peas.
- C.
Pink flowers in heterozygous snapdragons.
- D.
Coat color in rabbits.
- E.
Albinism in humans and animals.
- 3.What causes Down syndrome?
- A.
The lack of pigment production
- B.
An extra chromosome 21
- C.
The presence of two different codominant alleles
- D.
Inability to produce normal connective tissue
- E.
The environment interacting with the genotype
- 4.What is the hereditary cause of type AB blood?
- A.
The lack of pigment production
- B.
An extra chromosome 21
- C.
The presence of two different codominant alleles
- D.
Inability to produce normal connective tissue
- E.
The environment interacting with the genotype
- 5.A human male has ____ chromosomes with ____ sex chromosomes.
- A.
46, XY
- B.
48, XY
- C.
46, XX
- D.
48, XX
- E.
48, YY
- 6.Different pairs of recessive alleles can interfere with a biochemical pathway and thus produce albinism.
- A.
True
- B.
False
- 7.A small number of recombinants will occur due to crossing over between linked genes on homologous chromosomes.
- A.
True
- B.
False
- 8.Trisomy occurs when a chromosome, usually an autosome, is lost during meiosis.
- A.
True
- B.
False
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