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astraxan [27]
3 years ago
8

What is special about a prokaryotic cell?

Biology
1 answer:
AysviL [449]3 years ago
7 0
A prokaryotic cell is a unicellular organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelle.
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PLZZ HELP!!! A OR B??
Stolb23 [73]

Answer:

The correct answer would be A, I believe.

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The oxygen moves into the blood stream from the lungs by the process. 1.Exhalation 2.Osmosis 3.Diffusion 4.Respiration
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3 years ago
What is the phenotype ratio for this cross
ivolga24 [154]

Hello!

Small note: I would rewrite your cross so the tT is written as Tt, and so the TT will be in the top left corner while the tt is in the bottom right.

The phenotype is the observable characteristics of an organism that we see. It is not the genetic makeup. In this case, we have two genes - one for tall stems and one for short. The tall stem gene is dominant, meaning that if there even is one copy of it, the plant will have a tall stem. On the other hand, the short stem gene is recessive, meaning that there must be two copies of it for it to be expressed.

Now, we see here the four genotypes: TT, Tt, Tt, and tt. There are three genotypes with at least one tall stem gene, meaning that three phenotypes will have a tall stem. There is only one genotype with two short stem genes, meaning that there will only be 1/4 of the plants with a short stem.

Therefore, our ratio becomes 3 tall stems : 1 short stem, or 3:1.

Hope this helps!

6 0
3 years ago
!!URGENT!!
Alinara [238K]

Answer:

In an interval of 5 minutes, ER has ribosomes attached to it which makes proteins synthesizing in the lumen of the endoplasmic reticulum incorporates proteins in the small transport vesicles.

These vesicles transport and fused to the Golgi bodies where proteins modified which can be seen in 15 minutes in the figure. Then modified proteins are transported from the cell cytosol with the help of secretory vesicle to the extracellular matrix and to the required organs.

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