Biology Test Questions Essay, Research Paper

Question 1 (10 points)

Chromatids are

1.

attached at the centriole.

2.

“a pair of chromosomes, one from the mother and one from the father.”

3.

attached at their centromeres.

4.

identical until crossing over occurs.

100.0%

5.

both 3 and 4 are correct

Score: 10.0 / 10.0

Question 2 (10 points)

“Different, or alternative, forms of the same gene are called”

1.

genetomorphs.

100.0%

2.

alleles.

3.

mutants.

4.

chromatids.

5.

homologous.

Score: 10.0 / 10.0

Question 3 (10 points)

“If a diploid organism has a genome consisting of 4(four) chromosomes, it can produce ____different combinations of maternal

and paternal chromosomes in the offspring (disregarding crossing over).”

1.

4

2.

8

3.

12

100.0%

4.

16

5.

32

Score: 10.0 / 10.0

Question 4 (10 points)

Asexual reproduction

1.

Is the common form of reproduction in higher organisms.

100.0%

2.

Requires only one parent.

3.

Produces a wide variety of offspring.

4.

Both 2 and 3

5.

“1, 2 and 3″

Score: 10.0 / 10.0

Question 5 (10 points)

“During crossing over, ___undergo breakage and exchange segments”

1.

Sister chromatids

2.

Non sister chromatids of a homologous pair

3.

Nonhomologous chromatids

0.0%

4.

X and Y chromosomes

Score: 0.0 / 10.0

Question 6 (10 points)

Asexually produced daughter cells are

1.

identical to each other and the parent cell

2.

different from the parent cell and each other

3.

identical to each other but different from the parent cell

0.0%

4.

different from each other but identical to one of the parent cells

Score: 0.0 / 10.0

Question 7 (10 points)

Homologous chromosomes

1.

May exchange parts during meiosis.

2.

Have alleles for the same characteristics even though the gene expression may not be the same.

3.

“Are in pairs, one chromosome of each pair from the father and one from the mother.”

4.

Pair up during meiosis.

100.0%

5.

All of the above

Score: 10.0 / 10.0

Question 8 (10 points)

Sister chromatids of each chromosome are separated from each other during

1.

Metaphase I

2.

Anaphase I

3.

Metaphase II

100.0%

4.

Anaphase II

5.

Telophase II

Score: 10.0 / 10.0

Question 9 (10 points)

Prokaryotes reproduce by

1.

binary fission.

2.

mitosis.

3.

meiosis.

4.

1 and 2

0.0%

5.

2 and 3

Score: 0.0 / 10.0

Question 10 (10 points)

Which of the following is the same as a fertilized egg?

1.

Primary oocyte

2.

Primary spermatocyte

3.

Mature ova

100.0%

4.

Zygote

Score: 10.0 / 10.0