Two pea plants were subjected cross pollination. Of the 183 plants produced in the next generation, 94 plants were found to be tall and 89 plants were found to be dwarf. The genotypes of the two parental plants are likely to be
- TT and tt
- Tt and Tt
- Tt and tt
- TT and TT
The Correct Option is C
Solution and Explanation
Top Questions on monohybrid cross
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Questions Asked in KCET exam
A wooden block of mass M lies on a rough floor. Another wooden block of the same mass is hanging from the point O through strings as shown in the figure. To achieve equilibrium, the coefficient of static friction between the block on the floor and the floor itself is
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In an experiment to determine the figure of merit of a galvanometer by half deflection method, a student constructed the following circuit. He applied a resistance of \( 520 \, \Omega \) in \( R \). When \( K_1 \) is closed and \( K_2 \) is open, the deflection observed in the galvanometer is 20 div. When \( K_1 \) is also closed and a resistance of \( 90 \, \Omega \) is removed in \( S \), the deflection becomes 13 div. The resistance of galvanometer is nearly:
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Concepts Used:
Monohybrid Cross
“A monohybrid cross is the hybrid of 2 individuals with homozygous genotypes that result in the opposite phenotype for a certain genetic trait.”
“The cross between two monohybrid traits (for instance, TT and tt) is called a Monohybrid Cross.”
How To Carry Out A Monohybrid Cross?
These are the steps used in order to calculate a monohybrid cross:
- Indicate the alleles operating characters – dominant alleles can be indicated by upper case letters while recessive alleles can be indicated by lower case letters.
- Note down both the genotype and the phenotype of the parents or the parental generation that are being crossed.
- Markdown the genotype of the gametes from the parental generation – As an outcome of meiotic division, the gametes will be haploid.
- Tabulate a Punnett square to arrange the probable combinations of the gametes – Any combination is possible as the process of fertilization is at random.
- The genotype and the phenotype ratios of the prospective offspring can be written. The outcome hence acquired is known as the F1 generation. The F2, F3, etc, generations form the subsequent generations.
Read More: Difference Between Monohybrid and Dihybrid