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Westkost [7]
3 years ago
6

Which statements accurately describe the structure of the cell membrane? Check all that apply. The cell membrane is a single lay

er of phosphate molecules and lipids. The cell membrane is a double layer of phosphate molecules and lipids. The cell membrane has protein channels that are partly inside and partly outside the cell. The cell membrane has protein channels that are entirely inside the cell. The cell membrane’s protein channels only let certain molecules pass through. The cell membrane’s protein channels let all molecules pass through.
Biology
2 answers:
aalyn [17]3 years ago
7 0

Answer:

The cell membrane is a double layer of phosphate molecules and lipids.

The cell membrane’s protein channels only let certain molecules pass through.

The cell membrane has protein channels that are partly inside and partly outside the cell.  

Explanation:

mojhsa [17]3 years ago
7 0

Answer:

The cell membrane is a double layer of phosphate molecules and lipids.

The cell membrane’s protein channels only let certain molecules pass through.

The cell membrane has protein channels that are partly inside and partly outside the cell.  

Explanation:

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The phenotypic variance= 2113

The eenvironmenal variance= 644

The genetic variance= 1469

The broad-sense heritability = 0.695

Explanation:

To determine the phenotypic variance, we need to know the calculate the environmental variance and the genetic variance first;

because Phenotypic variance = V(p) such that;

V(p) = V(e) + V(g)                  

where V(e)  =  environmental variance and V(g)   =  genetic variance

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This implies that V(e)= initial variance which was there in the parents ( i.e  Variance of inbred line 1 = 311  and Variance of inbred line 2 = 333 )

V(e) = (311 + 333) = 644

Genetic Variance simply refer to the variance that occurs or preferrably , that is observed after inbreeding (i.e Variance of F1 = 316  and Variance of F2 = 1153)

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= V(g)/ V(p)

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