Answer:B). Cell membranes are composed of a lipid bilayer.
Explanation: A membrane is a lipid bilayer that surrounds the cell. Lipids have two parts: the fatty acid chain (the tail) and the phosphate group (the head).
The phosphate head groups are polar, face outward and interact with the outside environment of the cell. The fatty acid chain is hydrophobic and nonpolar, face each other in the bilayer thus forming a hydrophobic fluid interior.
The hydrophobic nature of the bilayer interior makes the membrane to permit only nonpolar and hydrophobic molecules to pass through the cell membrane. This is the reason the membrane allows only molecules that dissolve in the lipid bilayer to pass through to enter or leave the cell.
Homozygous: this means that the man has two genes for unattached earlobes, so whichever of these gene genes is transmitted to the child, it will be unattached. Since having unattached earlobes is a result of a dominant gene, one such gene is enough and the child will definitely have an unattached earlobe.
Question 1 is C. and Question 2 is B. (hope this helped)
Answer:
coat color blending in with dry grass.
Explanation:
the gazelle has a brown colored coat and dry grass is also a similar brown color allowing them to blend in more with their surroundings.
Answer:
See the answer below
Explanation:
Green and round pea plant has the genotype GGRr. Another pea plant with yellow and wrinkled peas has the genotype ggrr. Both were crossed
GGRr x ggrr
Genotypes of the Offspring:
8 GgRr
8 Ggrr
Phenotypes of the offspring (assuming G is dominant over g and R is dominant over r):
8 green and round peas
8 green and wrinkled peas
<em>The Punnet's square can be observed in the attached image</em>.
