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Sport & Recreation
Quiz General knowledge
on 18 Apr 13
(85% of success)
10 questions - 40 players
Quiz for chapters 9-17
Why was the development of purebred pea plant varieties critical to Mendel's work?
It allowed Mendel to predict the outcome of specific crosses and run controlled experiments.
To make a pea soup.
Genes come in different versions called :
The condition where two alleles are identical is called ----------, and where two alleles are different is called------------
If two plants have the same genotype, they must have the same-----
If two plants have the same phenotype, they don't have to have the same genotype. One can be :
Homozygous for the dominant allele, and the other is heterozygous.
White and second black.
You can carry two alleles for every trait. One is from your father via his-----, and one from your mother via her -----
What is a wild-type trait?
A trait that is a prevailing one in nature.
Some autosomal disorders in people include :
Recessive disorders : albinism, cystic fibrosis, phenylketonuria, sickle-cell disease; Dominant disorders : dwarfism, Alzheirmer, Huntington's disease
Why mating between close blood relatives is a bad idea?
It is more likely to produce offspring homozygous for a harmful recessive trait.
You just can't marry your cousin.
A man and a woman who are both carriers of cystic fibrosis have had three children without cystic fibrosis. If the couple has a 4th child, what is the probability that the child will have the disorder?
1/4. The genotypes and phenotypes of their other children are irrelevant.
100 in 20.
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