6.The gene map produced on based on recombination frequency data are termed as (1) Deletion map (2) Linkage map (3) Physical map (4) Cytogenetic Introduction: Gene mapping is a crucial […]
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CSIR NET Life Science Previous Year Questions and Solution on GENE MAPPING METHODS
Maximum Recombination Frequency Between Two Genes During Meiosis Explained
Maximum recombination frequency between two genes during meiosis of diploid organism can be (1) 25% (2) 50 % (3) 75 % (4) 100 % Maximum recombination frequency between two genes […]
CSIR NET Life Science Previous Year Questions and Solution on GENE MAPPING METHODS
Understanding Mendel’s Test Cross Ratio in Two-Point Crosses
4. Then typical Mendel test cross ratio in two point cross (1) 9:3:3:1 (2) 1:2:1 (3) 1:1 (4) 1:1:1:1 Introduction: Mendel’s test cross is fundamental in genetic studies to determine […]
CSIR NET Life Science Previous Year Questions and Solution on GENE MAPPING METHODS
Understanding Genetic Map Distance
3. In genetic map, distance between two genes is measured in units of (1) cM (2) A0 (3) bp (4) nm Title: Understanding Genetic Map Distance: Units and Their Significance […]
CSIR NET Life Science Previous Year Questions and Solution on GENE MAPPING METHODS
Understanding the Genetic Cross of Long and Full Endosperm with Short and Shrunken Endosperm in Maize
2. When a cross is made between dominant long and full endosperm (LLSS) and recessive short and shrunken endosperm (Ilss). The progeny obtained 98.3 % were long and full endosperm […]
CSIR NET Life Science Previous Year Questions and Solution on GENE MAPPING METHODS
Frequency of Crossing Over is Directly Proportional to Distance Between Genes
1. Frequency of crossing over is directly proportional to- (1) Length of chromosomes (2) Number of genes (3) Distance between genes (4) Number of chromosomes Frequency of crossing over is […]
CSIR NET Life Science Previous Year Questions and Solution on EXTENSION OF MENDELIAN PRINCIPLES
Understanding Polydactyly Penetrance
62. Human polydactyly traits having extra fingers or toes are caused by a dominant allele. In a screening it was found that out of 42 individuals having an allele for […]
CSIR NET Life Science Previous Year Questions and Solution on EXTENSION OF MENDELIAN PRINCIPLES
Understanding Pentadactylity and Its Incomplete Penetrance
61. Pentadactylity is a dominant trait, yet many individuals having single dominant alleles does not show any sign of polydactylity due to (1) Incomplete penetrance (2) Variable expressivity (3) Co […]
CSIR NET Life Science Previous Year Questions and Solution on EXTENSION OF MENDELIAN PRINCIPLES
Understanding Sex-Influenced Inheritance of Horns in Sheep
60. In some sheep, horns are produced by an autosomal allele, ‘H’ that is dominant in males and recessive in females. H+H+ individuals are hornless. A horned female is crossed […]
CSIR NET Life Science Previous Year Questions and Solution on EXTENSION OF MENDELIAN PRINCIPLES
Sex-Linked Inheritance of Eye Color
59. In an organism, allele for red eye colour is dominant over the allele for white eye colour. A cross is made between a white eyed male and a red […]
