Answer:
2 children will have freckles
Explanation:
This question is just a play on words for the punnet square. You have a dominate trait , freckles, and a recessive trait, no freckles. Charlie has no genes for freckles, so he will be represented as 2 lower case letters. Stacey has both types of genes for freckles and no freckles, so she will be represented as 1 capital letter and 1 lowercase letter. I'll try to make a punnet square down below. Capital A represents the dominate trait and lowercase a represents the recessive trait.
A a
a Aa aa
a Aa aa
As you can see, 2 of her children have the dominate trait for freckles, and two of her children only have recessive traits, which means no freckles:)
Answer:
they move from where they are more to where they are less.
Diffusion across a biological membrane is called passive diffusion.
Explanation:
When any molecules move across the cell membrane down their concentration gradient so they move from the area where their concentration is more to the area where their concentration is less and this process is called diffusion.
Diffusion across a cell membrane or biological membrane is called passive transport because no energy is needed to transport the molecules across the membrane as diffusion occurs along the concentration gradient.
DNA is composed of smaller subunits know as Nucleotides. The three parts of a nucleotide are Sugar, phosphate, and a nitrogen base. The four nitrogen bases that are found in DNA are Adenine, cytosine, guanine, and thymine.
starch is polysacchariide of glucose, which is a simple sugar l.e.monosaccharide. food is astored in plants in form of starch mostly. glycogen is another polymer of glucose. excess food i.e. glucose is stored in form of glycogen in animals.
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