When sphingolipid degradation is impaired by a defect in an enzymes, leads to partial breakdown products accumulate in the brain, spleen, and liver causing serious disease, known as Niemann-Pick disease. Such condition occurs due to a specific defect in

#Question id: 4920

#Unit 8. Inheritance Biology

In Neurospora, the mutant stp exhibits erratic stop-and start growth. When a female of stp strain is crossed with a normal strain acting as a male, all progeny individuals' showed stp mutant phenotype. However, the reciprocal cross resulted in all normal progeny, individuals. These results can be explained on the basis of

A. Uniparental gene contribution

B. Nuclear inheritance with concept of dominance

C. Sex link character

D. stp mutation may be located in chloroplast DNA

The most appropriate statement or combination of the above statements for explaining the experimental results is:

#Question id: 4921

#Unit 8. Inheritance Biology

Shell coiling in snail determine by genetic maternal effect. S for dextral and s for sinistral.  Following cross allowed between

Which of the following progeny not have SS genotype?

#Question id: 4922

#Unit 8. Inheritance Biology

Following statement is correct for Genetic maternal effect. 

A- Characteristics are determined by autosomal genes

B- Inherited according to Mendel’s principles

C- Phenotype of offspring determine by protein factor that is inherited via egg cytoplasm

#Question id: 4923

#Unit 8. Inheritance Biology

following statement given for Genetic maternal effect are correct?

A- Characteristics are determined by nuclear gene

B- Inherited according to Mendel’s principles

C- In F3 generation, segregation of Dominant trait and recessive trait in ratio of 3:1

D) No Segregation of Trait in F2 generation 

#Question id: 4924

#Unit 8. Inheritance Biology

Following statement given for a character

A- Characteristics based on autosomal genes

B- Biparntal inheritance

C-pattern of gene expression depend on parental origin

Which of the following having above statements feature?

#Question id: 4925

#Unit 8. Inheritance Biology

The pedigree in Figure shows the transmission of a trait in a particular family. Based on this pattern of transmission, the trait is most likely