Answer:
D
Explanation:
The double helix is a description of the molecular shape of a double-stranded DNA molecule. In 1953, Francis Crick and James Watson first described the molecular structure of DNA, which they called a "double helix," in the journal Nature.
C. Rough ER. Proteins synthesized on these ribosomes collect in the endoplasmic reticulum for transport throughout the cell
Answer:
1. The set of DNA and RNA sequences that determine the amino acid sequences used in the synthesis of an organism's proteins.
2. idk
3.Before a cell divides, its DNA is replicated (duplicated.)
4. A protein is made from amino acids, these form a strand of DNA
5.a mutation is the alteration of the nucleotide sequence of the genome of an organism, virus, or extrachromosomal DNA
6. idk
7.Cancer is the name given to a collection of related diseases
8. idk
9. idk
10. idk
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:
I, II, III, IV
Explanation:
Evaporation happens when a liquid turns into a gas.
Condensation happens when water vapor turns into a liquid.
Examples of precipitation is rain and snow. Runoff does happen because of precipitation.
Bacteria fixes nitrogen into forms by usable plants. Bacteria is very important to to the water cycle.
