Quiz 07-December-2023

#1. Two different mutant of drosophila gives a black body colour. When these mutants are crossed all progeny have wild type colour. It means mutation are

Epistatic

Co‐dominant

Non allelic

Allelic

#2. If neurons are like electrical wire. Then the function of myelin sheath would be like

Insulator

Charge conductor

Charge breaker

Charge dissipator

#3. Among the following which groups of organisms are not uricotelic

Reptiles

Birds

Insects

Mammals

#4. A Neurospora Stp strain have start and stop growth behaviour. The mutated gene was found to be on mitochondria. If male neurospora having stp mutation is crossed with wild type female neurospora. Phenotype of progenies will be

All Start and stop mutant

All wild type

Majority of Start and stop mutant

Majority of wild type

#5. Under which condition recombination between genes will occur during conjugation

F+ X HFr

F‐X F‐

F+ X F‐

F‐ X HFr

#6. During gamete formation alleles which do not undergo recombination segregates during

Cleavage

Meiosis‐II

Mitosis

Meiosis‐I

#7. Inversion is leads to crossover suppression because

Crossing over lead to formation of all acentric chromosomes

When crossing over occur within an inversion loop, leads to deleted and duplicated crossover chromosomes and inviability of zygotes carrying them

Segregation of chromosomes in not normal

No crossing over in the inversion loop

#8. If plant with genotype AaBb is self pollinated Where the A and B are not linked, then the probability of getting AABB genotype will be

1/2

1/16

1/8

1/4

#9. Polygenic traits in crops can be identified by

QTL mapping

Cluster analysis

Tandem array analysis

Gene mapping

#10. Unique character of family caryophyllaceae is presence of

Terpenes

Glycosides

Saponins

Alkaloids

Finish

Results

5/5 - (1 vote)

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