Which of these properties is NOT shared by stem cells and meristems? A. Transpla

Question

Which of these properties is NOT shared by stem cells and meristems?
A. Transplantation of their nuclei into eggs that have had their own nuclei removed would result in an egg that can complete normal development.
B. They may differentiate to form specialized cells.
C. Both exhibit at least some degree of totipotency.
D. Both are highly specialized and have had specific genes deleted.

Which observation shows that cellular differentiation does not involve changes in the genetic makeup of cells?
A. single sheep embryo transplanted to a black^faced surrogate mother can produce a fertile white^faced adult. A single root cell from an adult carrot can grow into an entire carrot plant
B. A single root cell from an adult carrot can grow into an entire carrot plant.
C. sheep embryo can produce a fertile adult.
D. tobacco embryo can produce an entire tobacco plant.

Explanation / Answer

1. Which of these properties is NOT shared by stem cells and meristems?

D. Both are highly specialized and have had specific genes deleted.

Explnation:-
Although each may produce specialized cell types as descendant cells differentiate, this process does not involve deletion of genes for either stem cells or meristems.

2. Which observation shows that cellular differentiation does not involve changes in the genetic makeup of cells?

B. A single root cell from an adult carrot can grow into an entire carrot plant.

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