1.
A breeding experiment dealing with a single character is called
2.
Mendel noted as many pairs of contrasting traits in pea plants
3.
Sudden inheritable change is called
4.
Independent inheritance of two separate traits, shape and colour of seeds in Mendel’s cross on pea plants resulted in a observable ratio of
5.
Two pink coloured flowers on crossing resulted in 1 red,2 pink and 1 white flower progeny. The nature of the cross will be
6.
Which of the following statement is incorrect?
7.
In human males all the chromosomes are paired perfectly except one. This unpaired chromosome is/are
-
Large chromosome
-
Small chromosome
-
Y chromosome
-
X chromosome
8.
A zygote which has an X chromosome received from her father. What will be the gender of the zygote?
9.
Number of sex chromosome in human gamete is
10.
How the progeny of a tall pea plant is indicated?
11.
The plant was used by Mendel
12.
Which section of DNA provides information for one protein?
13.
Which of the following is an example of genetic variation?
14.
In peas a pure plant (TT) is crossed with a pure short plant (tt). The ratio of pure tall plants to the pure short plants F2 generation is
15.
According to Mendel’s law, the chromosomes constituents of female are
16.
When RrYy is crossed with RrYy where R is for round and Y is for yellow then the ratio of new combinations in F2 are
1.Round and yellow
2.Round and green
3.Wrinkled and yellow
4.Wrinkled and green
17.
If a round, green seeded pea plant (RRyy) is crossed with wrinkled, yellow seeded pea plant ( rr YY) , the seeds produced in F1 generation
18.
Which of the following is totally impossible outcome of Mendel’s experiment?
19.
Which of the following is not a direct conclusion that can be drawn from Mendel’s experiment?
20.
Which one is a possible progeny in F2 generation of pure bred tall plant with round seed and short plant with wrinkled seeds?
21.
Which section of DNA provides information for one protein?
22.
Which of the following characters is not controlled by a gene?
1.Weight of an organism
2. Height of a
23.
What is the probability that the male progeny will be a boy?
24.
Who have a perfect pair of sex chromosomes?
25.
Which of the following can be called a characteristic?
26.
A cross between a tall pea plant (TT) and a short pea plant (tt) resulted in progenies that were all tall plants because
27.
The number of pair (s) sex chromosomes in the zygote of a human being is
28.
A man with blood group A marries a woman having blood group 0. What will be the blood group of the child?
29.
Pure breed pea plant A is crossed with pure bred pea plant B. it is found that the plants which look like A do not appear in F1 generation but re-emerge in F2 generation. Which of the plants A and B are tall and dwarf?
30.
Which of the following characters can be acquired nut not inherited?
31.
Law of dominance was given by
