#Question id: 4787
#Unit 8. Inheritance Biology
In humans, PKU (phenylketonuria) is a recessive disease caused by enzyme inefficiency at step A in the following simplified reaction sequence, and AKU (alkaptonuria) is a recessive disease due to enzyme inefficiency in one of the steps summarized as step B here:A person with PKU and homozygous for normal of other character was married a person with AKU and homozygous for normal of other character. What is expected phenotypes in their children?
#Question id: 4788
#Unit 8. Inheritance Biology
The wild-type (W) Abraxas moth has large spots on its wings, but the lacticolor (L) form of this species has very small spots. Crosses were made between strains differing in this character, with the following results:
What are correct conclude from genetic explanation of the results in these two crosses
a. female are heterogametic but male are homogametic for sex chromosome
b. female are homogametic but male are heterogametic for sex chromosome
c.Trait for spot shape linked with sex chromosome
d. Trait for spot shape linked with autosome chromosome
e. Gene for spot shape present on mitochondrial genome
#Question id: 4789
#Unit 8. Inheritance Biology
Red flower in plant mediated by three non-allelic genes as a follows Homozygous for mutant allele a ,b,c at any locus give white flower. A plant with Genotype Aabbcc is cross with genotype aaBbCc Plant. What is proportional of white flower among their offspring?
#Question id: 4790
#Unit 8. Inheritance Biology
The F2 genotypes of two independently assorting gene A and B with complete dominance result in a 9 : 3 : 3 : 1 ratio of phenotypes if there is no interaction between the genes. Following modify phenotypic ratio of 9:3:3:1 given as following table (p - phenotype) Which of the following correct matching of gene interaction and their deviated phenotype ratio?
#Question id: 4791
#Unit 8. Inheritance Biology
Body color in mice, YY is a recessive lethal, Yy yellow, yy gray and hair type straight is dominant over fuzzy. A geneticist crosses two yellow mice with heterozygous straight hair. Which the observe ratio is of obtains following progeny?
#Question id: 4792
#Unit 8. Inheritance Biology
A number of all-white cats are crossed and they produce the following types of progeny: 12/16 all-white, 3/16 black and 1/16 gray. If the genotype black progeny is A_bb. Which of the following statement are correct?
a. Epistatic genes is recessive.
b. Epistatic gene is dominant
c. A gene is dominant epistatic
d. B gene is dominant epistatic
e. aa gene is recessive epistatic
f. bb gene is recessive epistatic