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galina1969 [7]
2 years ago
7

What type of molecule can easily diffuse through the plasma membrane without any help? Why?

Biology
1 answer:
babunello [35]2 years ago
7 0
Water diffusion is called osmosis. Oxygen is a small molecule and it's nonpolar, so it easily passes through a cell membrane. Carbon dioxide, the byproduct of cell respiration, is small enough to readily diffuse out of a cell. Small uncharged lipid molecules can pass through the lipid innards of the membrane.
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A white flower with a homozygous recessive genotype for petal color would have a
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An heterozygote individual has two different allele in its genotype e.g Aa

A dominant gene is a gene that expresses itself in the phenotype of an individual while a recessive gene is a gene that is not expressed in the phenotype.

The genotype for a white homozygous flower is WW while the genotype for homozygous recessive is ww.

The dominant genotype is usually denoted with capital letter and the recessive is denoted with small letter.

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