Answer:Cholesterol helps to restrict the passage of molecules by increasing the packing of phospholipids. Cholesterol can fit into spaces between phospholipids and prevent water-soluble molecules from diffusing across the membrane.
Explanation:
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The genotype of the cross is 1 : 2 : 1 ( TT : Tt : tt )
The phenotype of the cross is 3 : 1 ( Tall : Dwarf )
<u>Explanation:</u>
Given:
Cross between two heterozygous tall pea plant
Let the allele of a tall pea plant be represented by T and for dwarf be t
In heterozygous condition, the genotype would be Tt
Cross between Tt X Tt is shown in the diagram inserted.
According to the cross performed:
The genotype of the cross is 1 : 2 : 1 ( TT : Tt : tt )
The phenotype of the cross is 3 : 1 ( Tall : Dwarf )