Question

1. Immortal cell lineages Select one: a. are derived from cancerous cells. b. are derived from...

1. Immortal cell lineages

Select one:

a. are derived from cancerous cells.

b. are derived from normal body cells.

c. are used in cell replacement therapy.

d. are unable to grow outside the body.

2. Which of the following applications seeks to reveal differences in the number of tandem repeats among individuals for the purposes of identification?

Select one:

a. DNA Hybridization

b. DNA libraries

c. genomics

d. DNA Profiling

3. Chromosomes are unduplicated during which phase of cell cycle?

Select one:

a. G1 phase

b. G2 phase

c. prophase

d. S phase

4. A cell cycle checkpoint for S phase would likely inhibit progression through the cell cycle if _____.

Select one:

a. The surrounding cells are dividing.

b. The temperature of the cell is too low.

c. There is DNA damage.

d. ATP supply in the cell is too low.

Homework Answers

Answer #1

1. Option A - are derived from cancerous cells

The origins of some immortal cell lines, for example HeLa human cells, are from naturally occurring cancers.

2.Option - D - DNA Profiling

The number of times a nucleotide sequence is repeated in each STR can be calculated from the size of the STRs. A forensic scientist can use this information to determine if a body fluid sample comes from a particular person.

3.Option A - G1 phase

G1 phase (Gap 1) - Cellular contents excluding the chromosomes, are duplicated.

4.Option C - There is DNA damage.

S Phase: To produce two similar daughter cells, the complete DNA instructions in the cell must be duplicated. DNA replication occurs during this S (synthesis) phase.

P.S If this helped you please like the answer.Thankyou.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Select all that apply. Which of the following is true of cancer cells? 1. They exhibit...
Select all that apply. Which of the following is true of cancer cells? 1. They exhibit uncontrolled cell division. 2. They have a defect in their G1 checkpoint so that they proceed to the S phase instead of staying in G1 (G0). 3. They are invasive, able to colonize other parts of the body by metastasis. 4. They have a defect in their cell cycle checkpoints so that they remain arrested in the G1 phase of the cell cycle.
1.) a Chromosomes decondense into an extended state at which point in the cell cycle? Select...
1.) a Chromosomes decondense into an extended state at which point in the cell cycle? Select one: a. At the end of telophase. b. At the end of prophase. c. At the beginning of metaphase. d. At the end of interphase. b) Which of the following is not considered a phase of mitosis? Select one: a. None of these answers. b. Anaphase. c. Metaphase. d. Prophase. e. Interphase.
1. 2)When during the Cell Cycle would you expect to find cohesin protein associated with chromosomes?...
1. 2)When during the Cell Cycle would you expect to find cohesin protein associated with chromosomes? Select all that apply. Marks will be removed for incorrect choices. Select one or more: a. G1 phase b. Prophase c. Metaphase d. Telophase. b.) Comparison of mitosis and cytokinesis in animal versus plant cells reveals: Select one: a. A cleavage furrow is initiated in an animal cell, while a cell plate begins to form in plant cells during telophase. b. The nuclear envelope...
In a cancerous cell, you would expect telomerase activity to be Select one: a. Higher than...
In a cancerous cell, you would expect telomerase activity to be Select one: a. Higher than in a healthy cell b. Lower than in a healthy cell c. The same as in a healthy cell ------------ In his experiments, Mendel sometimes crossed tall pea plants with short ones. The outcome of such crosses would always express the dominant allele (either tall or short). If the outcome of such a cross had been a medium size (basically between tall and short),...
5. The two new daughter cells formed by mitosis have:          a. one-half the number of...
5. The two new daughter cells formed by mitosis have:          a. one-half the number of chromosomes of the parent cell          b. twice the number of chromosomes of the parent cell          c. the same number of chromosomes as the parent cell          d. the same amount of cytoplasm as the parent cell 6. The phase in which DNA replicates is:          a. prophase                                    d. telophase          b. metaphase                                 e. none of the above          c. anaphase 7. During...
Answer each question with an explanation. (Cell Biology) 1)Mitogens such as EGF ______. a. cause cells...
Answer each question with an explanation. (Cell Biology) 1)Mitogens such as EGF ______. a. cause cells to proceed through M phase b. Induce inactivation of Ras c. inhibit Rb 2)The G1 checkpoint ________. a. causes cells to proceed through S phase more quickly b. involves the stabilization of p53 c. is activated by errors caused during DNA replication 3)The contractile ring divides the cell in two. Three main proteins are involved. Which of the following proteins does not localize to...
1.Which of the following rows lists the cell cycle in the correct sequence? a) interphase, metaphase,...
1.Which of the following rows lists the cell cycle in the correct sequence? a) interphase, metaphase, prophase, telophase, anaphase, cytokinesis b) interphase, prophase, metaphase, anaphase, telophase, cytokinesis c) interphase, G1, S, G2, mitosis, cytokinesis d) prophase, metaphase, anaphase, telophase 2. Descriptions of some structures involved in cell division -arrangements of strained chromosomes into homologous pairs from longest to shortest -strands of DNA tightly coiled around histones -a specialized region on chromosomes where sister chromarids are joined together -condensed DNA Match...
Which of the following is true about tumors Select one: a. Malignant tumors can release cancerous...
Which of the following is true about tumors Select one: a. Malignant tumors can release cancerous cells in the bloodstream. These cells are called metastases. b. Tumors release angiogenic signals that attract blood vessels c. Tumors can sometimes be fought via immunotherapy d. Cancer is often the result of a single mutation e. All of the above are correct, except d ------------ Which of the following proteins is not part of the replisome? Select one: a. Primase b. Helicase c....
Cell biology 1. Briefly describe what occurs in the four phases of the cell cycle (G1,...
Cell biology 1. Briefly describe what occurs in the four phases of the cell cycle (G1, S, G2, M). 2. How does cyclin regulate cyclin-dependent kinases (Cdks)? Why do Cdks require cyclin? 3. Mitogens are involved in cell signaling pathways which promote cell division by the production of cyclin. Using the figure 18-14 from your book (which is on the right), answer whether the expression of genes required for cell proliferation will be increased or decreased under the following scenarios....
1. What is the role of macrophage? Select one: a. Start T cell production b. Clean...
1. What is the role of macrophage? Select one: a. Start T cell production b. Clean up foreigner invaders in our body c. Responds to parasite 2. Why is the lymphatic system a strong component in our immune system? Select one: a. Helps mature T cells for our immune system b. Helps produce mast cells to infection c. Helps produce an immune response to infection 3.What do mast cells do in the inflammation process? Select one: a. Cause bacteria to...