Genetics Lab Quiz 38 13. A couple has five children, all with blood type A. The
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Genetics Lab Quiz 38 13. A couple has five children, all with blood type A. The mothe ABO Drosop is A. Based on this informa tion, which describes the most probable genotype of the father? r's blood type is O, and the father's blood ty a) diploid b) haploicd c) heterozygous d) homozygous 4. Fruit flies reproduce through a) splitting b) plasmid c) asexual reproduction d) sexual reproduction 5. An individual's ABO blood type is normally determined by: a. Genetic inheritance and environmental influences during life b. Environmental influences alone c. The inheritance of 1 of 3 possible alleles (A, B, or O) from each parent . In the ABO blood system, you normally can be type a) b) c) d) AB, A, B, O ABO AB, A, B AB 2. Short answer Questions I. What are three general features used to distinguish male and female Drosophila? Il. Why are sex combs the best method for identifying gender?Explanation / Answer
13. Homozygous : the father will have both the copies of AA genotype so that only A offsprings would be formed.
14.Fruit flies reproduce through sexual reproduction.
15.The inheritance of one of 3 possible alleles A,B O from each parent. If the alleles are dominant either A or B genotype will express itself.If recessive phenotype is present O genotype will express itself. But A and B will be dominant on O.
16.In ABO system either A,B and AB will express.There will less chances of O occurrence because A and B genotype will be dominant on it.
Short answers Questions
1. Features of male and female drosophila:
Male have dark, rounded genetalia whereas female have light pointed genetalia.
Females have a pointed abdomen with a spike on dorsal surface and males have rounded abdomen.
Females have each abdominal segment carries a narrow dark band and males have uniformly dark segment.
2 .sex Combs are the best way to identify gender because in females sex Combs are not present and males only have them.
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