Question 1 :
A cross done between a homozygous recessive and a heterozygous plant is called as<br/>

Question 2 :
The Punnett square below shows a cross between a pure tall and heterozygous tall plant. What is the total number of tall offspring represented in the Punnett square?<br/>T- tall plant<br/>t- short plant<br/><table class="wysiwyg-table"><tbody><tr><td></td><td>T</td><td>T</td></tr><tr><td>T</td><td>TT</td><td>TT</td></tr><tr><td>t</td><td>Tt</td><td>Tt</td></tr></tbody></table>

Question 4 :
If a cross is made between two individuals, each&#160;having genotype Bb, two offsprings are obtained. Out of these first has dominant trait. What is the&#160;probability that the second offspring will exhibit&#160;recessive trait?

Question 5 :
Mendel, for his studies chose pea plants and considered many contrasting characteristics present in the pea plants. One of characteristics not considered by him was

Question 6 :
In the monohybrid cross Tt x tt, the phenotypic ratio of the progeny would be&#160;

Question 7 :
Among seven pairs of traits studied by Mendel, the number of traits related to flower, pod and seed were

Question 8 :
For the alleles $$A,B,C,D$$ where, $$A=B&gt;C=D$$ the number of phenotypes obtained will be

Question 9 :
The cross used to ascertain whether the plant is homozygous or heterozygous is

Question 12 :
F$$_1$$ generation of a cross between a red flowered plant and a white flowered plant predominantly consisted of red flowered plants indicating red flower trait is

Question 13 :
An offspring of two homozygous parents differing from one another by alleles at only one gene locus is

Question 14 :
25:46:26 is the genotypic ratio in $${ F }_{ 2 }$$ generation is expected from which parental cross?

Question 15 :
Which mendelian idea is depicted by a cross in which the $$F_1$$generation resembles both the parents ?

Question 16 :
What is the genotypic and phenotypic ratio of monohybrid test cross?

Question 18 :
Which one of the following in man is controlled by dominant genes?

Question 19 :
What is the phenotypic ratio of F2 generation of monohybrid cross ?

Question 20 :
The genotype of a plant showing the dominant phenotype can be determined by

Question 22 :
Find the correct statements<br>(i) $$F_1$$ progeny is first hybrid generation and progeny resembles either of parent.<br>(ii) $$F_2$$progeny is a resultant hybrid generation of cross pollination among $$F_1$$ progeny and the progeny shows both dwarf and tall plants<br>(iii) $$F_2$$ progeny is second hybrid generation produced by selfing $$F_1$$ hybrids and progeny contains both dwarf and tall plants<br>(iv) Proportion of probability of plants that are dwarf is 1/4 of $$F_2$$plants while 3/4 of $$F_2$$plants are tall

Question 23 :
How many pairs of true breeding varieties were selected by Mendel for his experiment on pea plant?<br/>

Question 24 :
Which of the following statement is true about Mendel's law of segregation?<br/>

Question 25 :
If Mendel might have studied 7 pairs of characters&#160;in a plant with 12 chromosomes, instead of 14, then

Question 27 :
Consider the following four statements (1,2,3 and 4) and select the right option for incorrect statement.<br>a.Mendelian experiments had large sampling size, which gave greater credibility to the data that he collected.<br>b.Recessive allele influences the appearance of phenotype even in the presence of an alternative allele.<br>c.multiple alleles can be found only when population studies are made.<br>d.In $$F_2$$, generation of Mendelian monohybrid cross, the tall and Dwarf traits were identical to their parental types and showed blending.

Question 28 :
Grain colour in wheat is determined by three pairs of polygenes. Following the cross AABBCC (dark colour) x aabbcc (light colour), how many plants will be produced with the genotype AABBCC?

Question 29 :
If in a garden pea plant, a cross is made between red flowered and white flowered plants. What will be the phenotypic ratio in F$$_{2}$$&#160;generation?

Question 30 :
In an organism, tall phenotype is dominant over recessive dwarf phenotype and the alleles are designated as T and t, respectively. Upon crossing two different individuals, total 250 offsprings were obtained, out of which 124 displayed tall phenotype and rest were dwarf. Thus, the genotype of the parents were<br/>

Question 31 :
The presence of recessive part in a large populationis found to be 16%. The frequency of dominantallele in that population is

Question 32 :
In pea plant, yellow seeds is dominant over green seeds. If heterozygous plant having yellow seeds crossed with plant having green seeds then what is the ratio of yellow and green plant in $$F_1$$ generation?