Definition of Linkage and Linked Genes
Trending Questions
Q.
The term ‘linkage’ was coined by
Sutton
Mendel
Morgan
Bateson & Punnett
Q.
Strength of linkage is indirectly proportional to
Chiasma formation
Distance between genes
Number of chromosomes in the organism
Synapsis
Q.
Linkage was discovered by ___.
Blakeslee
Sutton
Muller
Bateson & Punnett
Q.
Strength of linkage is related inversely to distance between
Genes
chromatids
chromosomes
telomeres
Q. Select the correct statement from the ones given below with respect to dihybrid cross :
- Tightly linked genes on the same chromosome show higher recombinations
- Genes far apart on the same chromosome show very few recombinations
- Genes loosely linked on the same chromosomes show similar recombinations as the tightly linked ones
- Tightly linked genes on the same chromosome show very few recombination
Q. Which of the following statements is not true of two genes that show 50% recombination frequency?
- If the genes are present on the same chromosome, they undergo more than one crossovers in every meiosis
- The genes may be on different chromosomes
- The genes show independent assortment
- The genes are tighly linked
Q. Lack of independent assortment of two genes A and B in the fruit fly Drosophila due to :
- Repulsion
- Crossing over
- Recombination
- Linkage
Q. Two genes R and Y are located very close on the chromosomal linkage map of maize plant. When RRYY and rryy genotypes are hybridised then F2- generation will show
- Segregation is expected in 9 : 3 : 3: 1 rate
- Segregation in 3: 1 ratio
- Higher number of parental types
- Higher number of the recombinant types
Q. Independent assortment of genes does not take place when:
- Genes are linked and located on the same chromosomes
- All the above
- Genes are located on homologous chromosomes
- Genes are located on non-homologous chromosome
Q. The term "linkage" was coined by :
- W. Sutton
- T. Boveri
- G. Mendel
- T.H.Morgan
