Home

Some Helpful Tools

Science Homepage: click here

Extra Tools: click here

1. The initial stage of cell division where chromosomes shorten and thicken and can be seen as two chromatids, the spindle, containing spindle fibers, is formed in opposite ends of the cell, and the nucleus membrane disappears is called _________.

a. prophase

b. metaphase

c. telophase

2. The second stage where chromosomes with help from the spindle fibers move to the center of the cell to be separated is called _________.

a. anaphase

b. telophase

c. metaphase

3. The final stage in cell division where the chromosomes are now separate at the poles, a nucleus develops around each of the chromosomes, and two daughter cells are created is called __________.

a. telophase

b. prophase

c. anaphase

4. The stage in cell division where the two chromatids are separated by the spindle fibers and pulled to opposite ends of the cell is called _________.

a. metaphase

b. anaphase

c. telophase

5. A eukaryotic organism that contains two sets of chromosomes (one set from each parent), which equals 46 chromosomes is called ________.

a. multicellular

b. haploid

c. diploid

6. An exchange of genetic material between homologous chromosomes during meiosis is called __________.

a. crossing over

b. gene sharing

c. cloning

7. A mature haploid male and female cell, otherwise known as the reproductive cells, which unite during fertilization to produce a zygote is called a ________.

a. centromeres

b. chromosomes

c. gametes

8. A single set of unpaired chromosomes from either parent, which equals 23 chromosomes instead of from both parents, which equals 46 chromosomes is called _______________.

a. haploid

b. diploid

c. genetic material

9. Which of the following is a fertilized egg formed by the union of a female gamete and a male gamete?

a. chromatin

b. centromere

c. zygote

10. Which of the following is the mode of reproduction where an offspring is produced from a single parent?

a. synapsis

b. asexual reproduction

c. sexual reproduction

11. Which of the following is the mode of reproduction where an offspring is produced from two parents?

a. synapsis

b. asexual reproduction

c. sexual reproduction

12. Which of the following is the product of reproduction?

a. centromere

b. organelles

c. offspring

13. Any cell of a living organism except for the reproductive cells is called a ___________.

a. somatic cell

b. centriole

c. gamete

14. Which of the following is the region of the chromosome where the two sister chromatids are joined?

a. centromere

b. organelle

c. centriole

15. A __________is a cylindrical cell structure that is made up of nine triplets of spindle fibers and found in most animal cells during cell division.

a. centriole

b. gametes

c. nucleus

16. The pairing of homologous chromosomes from each parent at the beginning of meiosis is called __________.

a. chromatid

b. synapsis

c. zygote

17. A set of chromosomes having genes in the same order, one received from each parent is called _______.

a. somatic cells

b. diploid

c. homologous chromosomes

18. One of the two strands of an identical chromosome joined by a centromere during early cell division is called a ________.

a. centromere

b. chromatid

c. chromatin

19. A collection of threadlike structures that move and separate the chromosome during cell division is called _________.

a. haploid

b. crossing over

c. spindle fibers

20. Which of the following is the substance that forms chromosome and made up of proteins, RNA, and DNA?

a. cytoplasm

b. chromatid

c. chromatin

21. The division of cytoplasm that creates two daughter cells at the end of cell division is called _________.

a. cytokinesis

b. haploid

c. telophase

22. Which of the following is the dividing of a cell that creates four daughter cells where the new cells contain half the number of chromosomes of the parent cell?

a. mitosis

b. meiosis

c. sexual reproduction

23. Which of the following is the dividing of a single cell that creates two identical cells where the new cells contain the same number of chromosome and genetic material as the original cell?

a. mitosis

b. meiosis

c. asexual reproduction

24. A mature female reproductive cell; unfertilized egg is called a(n) ________.

a. ovum

b. zygote

c. centromere

25. Which of the following is the mature motile male sex cell by which the ovum is fertilized?

a. zygote

b. spermatozoa

c. gametes

26. Having more than two sets of chromosomes is called _______.