1. The process of cell division which forms cells having the same number of chromosomes as the parent cell is:
A meiosis
B mitosis
C fertilisation |
2. The process of cell division which forms cells having the half the number of chromosomes as the parent cell is:
A mitosis
B meiosis
C somatic cell formation |
3. A body cell with a diploid number of chromosomes is said to be:
A 2n
B n
C tetraploid |
4. The number of chromosomes in all human gametes is:
A 23 pairs
B haploid
C 46 |
5. The number of chromosomes in human somatic cells is:
A 23
B 23 pairs
C haploid |
6. The resting phase that is not part of cell division is called:
A interphase
B telophase
C rest phase |
7. The correct of stages of mitosis is:
A anaphase, metaphase, interphase
B prophase, metaphase, anaphase, telophase
C prophase, telophase, metaphase, anaphase |
8. The disappearance of the nuclear membrane is a sign of the stage called:
A prophase
B metaphase
C anaphase |
9. The lining up of chromatids at the equator of the cell is a sign of:
Ametaphase
Bprophase
Canaphase |
10. One difference between mitosis and meiosis is that:
Athey are both forms of cell division
Bthere are 2 daughter cells in mitosis and 4 in meiosis
Cmitosis makes gametes but meiosis doesn't |
11. Mitosis in animal cells and plant cells:
Ais exactly the same
Bdiffers in the gamete production phase
Cdiffers because plants have cell walls |
12. Spermatogenesis forms:
A4 gametes with 23 pairs of chromosomes
B4 sex cells with 23 genes
C4 daughter cells called sperm |
13. Oogenesis is:
Athe formation of 2 rounded male gonads
Bthe development of 4 female somatic cells
Cthe production of 1 egg and 3 polar bodies |
14. The formation of a new human follows these processes:
Aspermatogenesis and mitosis only
Bmeiosis, fertilisation, mitosis
Cimmaculate conception only |
15. When crossing over and recombination occur:
Athe parents and offspring's gene combinations remain the same
Bthere is a decreased possibility of phenotype variation in the offspring
Cthe parents and offspring's gene combinations differ |