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In: Biology

True or false. - G2 is the phase of the cell cycle where one would expect...

True or false.

- G2 is the phase of the cell cycle where one would expect to find a terminally differentiated cell (ex. neuron).

True or false.

- Diploid spermatogonia that give rise to haploid sperm cells are considered unipotent cells.

True or false.

A morphogen is a chemical signal that emanate from a region of tissue, which when depending on the concentration gradient can help to determine pattern formation in the body plan development.

Solutions

Expert Solution

Ans . False ( G2 is the phase of the cell cycle where one would expect to find a terminally differentiated cell e.g. neuron )

Because cells can exit the cell cycle to enter and stay at resting (G0 ) phase, which is the case in terminally differentiated cells.

True  (Diploid Spermatogonia that give rise to haploid sperm cells are considered unipotent cells).

Spermatonial stem cells in mammalian testis are unipotent stem cells for spermatozoa. They show unique cell characteristics as stem cells and germ cells.

True (A Morphogen is a chemical signal that emanate from a region of tissue, which when depending on the concentration gradient can help to determine pattern formation in the body plan development).

Morphogens are signalling molecules that emanate from a restricted region of a tissue and spread away from their source to form a concentration gradient.As the fate of each cell in the field depends on the concentration of the morphogen signal, the gradient prefigures the pattern of development.

gladiator answered 2 years ago
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