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प्रश्न
From the list given below, select the character which can be acquired but not inherited
विकल्प
colour of eye
colour of skin
size of body
nature of hair
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उत्तर
size of body
Explanation -
The size of the body of an organisms increases or decreases based on the availability of the food and results from the changes in the non-reproductive tissues. So, these changes cannot be passed on to the next generation. So, it is an acquired character.
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संबंधित प्रश्न
Explain Mendel’s dihybrid ratio with the help of any one cross.
A homozygous Tall plant (T) bearing red coloured (R) flowers is crossed with a homozygous dwarf plant (t) bearing white flowers (r):
(1) Give the Genotype and Phenotype of the F2 generation.
(2) Give the possible combinations of the gametes that can be obtained from the F2 hybrid.
(3) Give the dihybrid ratio and the phenotype of the offsprings of the F2 generation when two plants of the F1 generation above are crossed.
Under which conditions does the law of independent assortment hold good and why?
The genotype of a plant showing the dominant phenotype can be determined by
Explain the law of dominance in a monohybrid cross.
A fruit fly exhibiting both male and female traits is ______.
Mendel’s Law of independent assortment holds good for genes situated on the ______.
Two genes ‘A’ and ‘B’ are linked. In a dihybrid cross involving these two genes, the F1 heterozygote is crossed with homozygous recessive parental type (aa bb). What would be the ratio of offspring in the next generation?
In the F2 generation of a Mendelian dihybrid cross the number of phenotypes and genotypes are ______.
Assertion: When the two genes in a dihybrid cross are situated on the same chromosome, the proportion of parental gene combinations is much higher than the nonparental type.
Reason: Higher parental gene combinations can be attributed to crossing over between two genes.
Do genetic combination of mothers play a significant role in determining the sex of a new born?
Sahil performed an experiment to study the inheritance pattern of genes. He crossed tall pea plants (TT) with short pea plants (tt) and obtained all tall plants in F1 generation.
When F1 plants were self-pollinated, a total of 800 plants were produced. How many of these would be tall, medium height or short plants? Give the genotype of F2 generation.
Which one of the following genetic ratios will be obtained in a dihybrid test cross:
Which of the following statement is not correct for two genes that show 50% recombination frequency?
In the Mendelian dihybrid cross when heterozygous round yellow is self grossed, round green offsprings are represented by the genotype.
Describe the dihybrid cross upto F2 generation as conducted by Gregor Mendel using pure lines of Garden Pea for characters-seed shape and seed colour.
