Question 2 :
For the alleles $$A,B,C,D$$ where, $$A=B>C=D$$ the number of phenotypes obtained will be

Question 3 :
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 4 :
If a cross is made between two individuals, each having genotype Bb, two offsprings are obtained. Out of these first has dominant trait. What is the probability that the second offspring will exhibit 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 :
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 7 :
A cross done between a homozygous recessive and a heterozygous plant is called as<br/>

Question 8 :
The cross used to ascertain whether the plant is homozygous or heterozygous is

Question 10 :
Among seven pairs of traits studied by Mendel, the number of traits related to flower, pod and seed were

Question 12 :
The law of segregation of characters postulated by Mendel can be related to

Question 13 :
From a single ear of corn, a farmer planted 200 kernels which produced 140 tall and 40 dwarf plants. The genotype of these offsprings are most likely

Question 14 :
Mendel crossed a pure white-flowered recessive pea plant with a dominant pure red-flowered plant. The first generation of hybrids from the cross should show

Question 15 :
Which one of the following cannot be explained on the basis of Mendel's Law of Dominance _________________________.

Question 16 :
The law of segregation of characters is also called the law of purity of gametes because

Question 17 :
Which one of the following pairs is not of a contrasting character?

Question 18 :
How many different types of gametes can be formed by Fl&#160;progeny, resulting from the following cross:<br/>AABBCC x aabbcc<br/>

Question 19 :
One of the following did not constitute the seven pairs of characters noticed by Mendel.

Question 24 :
A tobacco plant heterozygous for albinism is self pollinated and 1200 seeds are subsequently germinated.How many seedlings would have the parental genotype?

Question 25 :
The offspring of AAbb $$\times$$ aaBB is crossed with aabb. The genotypic ratio of progeny will be

Question 27 :
Assertion: At $$F_2$$ stage in monohybrid cross, both parental traits are expressed in the proportion of 3:1. Reason: The contrasting parental traits show blending at $$F_2$$ stage.

Question 30 :
Consider the following statements (A - E)<br>A. Mendel is called the 'Father of Genetics'.<br>B. The simplest cross conducted by Mendel is the dihybrid crosses.<br>C. The dominant trait for the visible character seed colour selected by Mendel is green.<br>D. The first generation offspring is also represented as pure breeding.<br>E. Mendel's experiments are based on cross-breeding of two plants of pea differing witheach other.<br>The wrong statements are:

Question 31 :
A tall plant was grown in nutrient deficient soil and remained dwarf. When it is crossed with dwarf plant then

Question 34 :
Phenotypic and genotypic ratios according to Mendel's pattern of inheritance is&#160;

Question 35 :
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 36 :
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?

Question 37 :
How many pairs of true breeding varieties were selected by Mendel for his experiment on pea plant?<br/>

Question 38 :
A true breeding plant producing red flowers is crossed with a pure plant producing white flowers. Allele for red colour of flower is dominant. After selfing the plants of first filial generation, the proportion of plants producing white flowers in the progeny would be<br>

Question 39 :
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 40 :
In Drosophila, the allele for a normal grey body colour G is dominant to ebony body g. The following tablesummarises the results of several crosses.<br><br><br><table class="wysiwyg-table _wysihtml5-temp-1534531855229"><tbody class=" _wysihtml5-temp-1534531855229"><tr class=" _wysihtml5-temp-1534531855229"><td class=" _wysihtml5-temp-1534531855229">S. No.</td><td class=" _wysihtml5-temp-1534531855229">Cross</td><td class=" _wysihtml5-temp-1534531855229">Result</td></tr><tr class=" _wysihtml5-temp-1534531855229"><td class=" _wysihtml5-temp-1534531855229">1.</td><td class=" _wysihtml5-temp-1534531855229">strain 1*gg</td><td class=" _wysihtml5-temp-1534531855229">all wild-type</td></tr><tr class=" _wysihtml5-temp-1534531855229"><td class=" _wysihtml5-temp-1534531855229">2.</td><td class=" _wysihtml5-temp-1534531855229">strain 2*gg</td><td class=" _wysihtml5-temp-1534531855229">1 wild type: 1 ebony</td></tr><tr class=" _wysihtml5-temp-1534531855229"><td class=" _wysihtml5-temp-1534531855229">3.</td><td class=" _wysihtml5-temp-1534531855229">strain 3*gg</td><td class=" _wysihtml5-temp-1534531855229">all ebony</td></tr><tr class=" _wysihtml5-temp-1534531855229"><td class=" _wysihtml5-temp-1534531855229">4.</td><td class=" _wysihtml5-temp-1534531855229">strain 4*Gg</td><td class=" _wysihtml5-temp-1534531855229">3 wild type:1 ebony</td></tr></tbody></table><br>Which strain both have the genotype Gg?

Question 41 :
Name the scientist who converted Mendel's conclusions into principles of heredity

Question 42 :
Which one of the following will not be possible if the allele for dark-colored hair is dominant over the allele for light-coloured hair?

Question 44 :
The graphical representation to calculate the probability of all possible genotypes of offspring in a genetic cross in called

Question 45 :
Pure tall plants are crossed with pure dwarf plants. In the $${F}_{1}$$ generation, all plants were tall. These tall plants of $${F}_{1}$$ generation were selfed and the ratio of tall to dwarf plants obtained in $$F_2$$ was $$3 : 1$$. This is called as

Question 46 :
Scientists are investigating plants as experimental organisms for studies of genetics. The scientist in charge claims that these plants use complete dominance as their mode of inheritance for the traits being investigated.<br><br>Which of the following statements would support this claim?

Question 48 :
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 49 :
Mendel studied the inheritance patterns of 12 different&#160;pairs of characters of the pea plant. He could ascertain&#160;the independent assortment for only 7 of these 12&#160;pairs of characters by repeated experiments. What&#160;can be deduced from this?

Question 50 :
When a dihybrid cross is fit into a Punnett Square with 16 boxes, the maximum number of different phenotypes available are