Biology, 30.03.2020 19:40 shrinu

A researcher is using adult stem cells and comparing them to other adult cells from the same tissue. Which of the following is a likely finding?
A) The nonstem cells have lost the promoters for more genes.
B) The cells from the two sources exhibit different patterns of DNA methylation.
C) Adult stem cells have more DNA nucleotides than their counterparts.
D) The two kinds of cells have virtually identical gene expression patterns in microarrays.
E) The nonstem cells have fewer repressed genes.

Why is answer A), The nonstem cells have lost the promoters for more genes, INCORRECT

and

Why is answer B), The cells from the two sources exhibit different patterns of DNA methylation, CORRECT?

Answers: 2

Show answers

Another question on Biology

Biology, 22.06.2019 01:30

Which is an advantage of having memory cells when a pathogen is encountered for a second time. a) the memory cells are what proliferate into clones of cells in response to the binding of an antigen. b) memory cells are vital to the primary immune response in that they immediately recognize pathogens even at the first encounter. c) memory cells are essentially effector cells that are short lived and attack antigens even without having a receptor specific to that antigen. d) it ensures that more lymphocytes with a receptor specific to a particular antigen will be present than in a host that had never encountered that pathogen.

Answers: 1

Answer

Biology, 22.06.2019 04:30

What type of organism is a one-celled organism that functions as a single unit? a. bi-celled b. single-celled c. pre-celled d. multi-celled

Answers: 2

Answer

Biology, 22.06.2019 09:30

Astore manager timed janette to see how long it would take her to fold and put away a sweater, a shirt, a pair of pants, and a scarf. it took her 26.1 seconds for the shirt, 24.3 seconds for the sweater, 32.8 seconds for the pants, and 18.2 seconds for the scarf. what was the average time it took janette to fold and put away all four items? during a catered lunch, an average of 4 cups of tea are poured per minute. the lunch will last 2 hours. how many gallons of tea should the caterer bring if there are 16 cups in one gallon?

Answers: 1

Answer

Biology, 23.06.2019 01:30

Aprimary producer stores 9,000 kcal. in the energy pyramid, if a primary producer is consumed by a first-level consumer, and that first-level consumer is consumed by a second-level consumer and the second-level consumer is consumed by a third-level consumer, how much energy is stored by the third-level consumer from the primary producer? *

Answers: 1

Answer

You know the right answer?

A researcher is using adult stem cells and comparing them to other adult cells from the same tissue....

Questions