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Q 1/20
Score 0
Which of these cells is haploid?
30
zygote
liver cell
red blood cell
sperm cell
Q 2/20
Score 0
What results from meiosis of a diploid cell?
30
genetically different haploid cells
genetically identical haploid cells
genetically different diploid cells
genetically identical diploid cells
20 questions
Q.
Which of these cells is haploid?
1
30 sec
Q.
What results from meiosis of a diploid cell?
2
30 sec
Q.
What will be the genotypes of the offspring resulting from a genetic cross between two individuals, one of which is homozygous dominant, (TT), and the other heterozygous?
3
30 sec
Q.
Which statement about the human sex chromosomes is correct?
4
30 sec
Q.
The diagram shows the chromosomes in the nucleus of a cell that divides by mitosis. Which diagram shows the chromosomes in the nucleus of one of the daughter cells produced?
5
30 sec
Q.
The diagram shows the fusion of gametes to produce a son and a daughter.
What are the sex chromosomes in gamete Q and son R?
6
30 sec
Q.
A man has three sons.
What is the chance of his next child being a son?
7
30 sec
Q.
The diagram shows a cross between heterozygous tall pea plants.
Which statement is not correct?
8
30 sec
Q.
A genetic cross between two organisms may be shown as Gg × Gg.
What does g represent?
9
30 sec
Q.
Some fruit flies have orange eyes and others have red eyes.
If two orange-eyed fruit flies are crossed, their offspring always have orange eyes.
If two red-eyed fruit flies are crossed, their offspring sometimes include both orange-eyed and red-eyed flies.
What can be concluded from these observations?
10
30 sec
Q.
What are alleles?
11
30 sec
Q.
The diagram shows the sex chromosomes of a woman and of a man. Their genotypes for a recessive sex-linked condition are also shown. What are the chances that their daughter will show the sex-linked condition?
12
30 sec
Q.
The diagram shows the inheritance of ABO blood groups. The blood groups of some of the individuals are given.
What could be Priya’s genotype?
13
30 sec
Q.
What happens to the chromosome number after meiosis and after mitosis?
14
30 sec
Q.
Choose the correct answer.
15
30 sec
Q.
Which structure will be found in the nucleus of a body cell in a woman?
16
30 sec
Q.
When a cell divides, these events occur.
1 The DNA inside the cell is duplicated exactly.
2 Daughter cells are produced with the same chromosome number as the parent cell.
Which type of division has occurred?
17
30 sec
Q.
Owners of successful race horses hope that the horses’ offspring will be like their parents.
How does a young race horse inherit its characteristics?
18
30 sec
Q.
Which structures in plant cells build protein molecules under the control of the nucleus?
19
30 sec
Q.
What is the inheritance of colour blindness an example of?
