Quiz
genetic variation
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Questions in this quiz (13)
1what is an allele
- Aa form of a gene
- Ba enzyme
- Ca gamete
2what is a dominant allele
- Aan allele that controls the development of a characteristic when it is present in only one of the chromosomes
- Ban allele that controls the development of a characteristic when it is present in both chromosomes
3when is a recessive allele present?
- Aafter the dominant allele
- Bwhen the dominant allele is not present
- Cnever
4what is a gene?
- Aa small section of dna
- Bthe opposite to dna
5what does each gene code for?
- Aa particular combination of amino acids (which make a specific protein)
- Ba particular combination of alleles (which makes a specific chromosome)
6some disorders are inherited
- ATrue
- BFalse
7what is polydactyl
- Aa disorder when an individual has extra fingers or toes
- Ba disorder when an individual has less fingers or toes
8what is polydactyl caused by?
- Aa dominant allele (can be passed on by only one parent who has the disorder)
- Ba recessive allele (can be passed on by both parents who carry the disorder)
9what is cystic fibrosis?
- Aa disorder of cell walls
- Ba disorder of cell membranes
- Ca disorder of nucleus
10cystic fibrosis must be inherited by...
- Aone parent
- Bboth parents
11the parents may carry the disorder without actually having it themselves
- ATrue
- BFalse
12it is caused by a dominant allele
- ATrue
- BFalse
13can embryos be screened?
- Ayes
- Bno
Information
- Description
- Quiz on genetic variation, created by hanayousuf on 10/05/2015.
- Author
- hanayousuf
- Language
- English
- Views
- 0
- History
- Created on 10 May 2015 · updated on 19 Feb 2016
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