Genes
Whats a phenotype?
A visible characteristic of a person.
Whats a signal?
A chemical reaction in a human cell.
What senses color in the eye? cone cells or rod cells?
Cone cells sense color.
What are the building blocks of proteins?
Amino acids.
Humans usually have this many chromosomes.
46.
Whats a mutation?
A change in DNA sequence.
Whats a genotype?
A genetic structure makeup of a chromosome.
What nerve goes from the face to the brain?
Facial nerve.
The instructions for making proteins are stored in this molecule.
DNA.
what structures are found in the nucleus and carry genetic information?
Chromosomes.
What is homozygous?
When both alleles are the same.
What is a genetic code?
A genetic code is a set of instructions.
How is spicy food detected on your tongue?
By heat or temperature receptors.
What are 2 uses that proteins are used for in our body?
Correct if any of these two
Muscle, skin, hair.
What is half the number of chromosomes are found in sperm and egg cells?
23, half from each parent.
What is heterozygous?
When both alleles are different.
Whats a nucleus?
A nucleus is an organelle in cells that contain genes.
What is the nerve behind the eye called?
Optic nerve.
What does your body break down from protein into tiny parts so it can use them?
Amino acids.
True or false, chromosomes for an offspring are picked by the parents choice.
False. They are random.
If you get a gene for brown eyes from one parent and a gene for blue eyes from the other, the one that shows up is called what type of gene?
A dominant gene.
What exactly is DNA?
A chemical building block that makes genes.
What are two sensations that receptors in the skin help detect?
Correct if you got any two of these answers.
pressure, temperature, pain
Your body needs proteins to build muscles and repair cells. But if your body doesn’t get enough protein from food, what could happen to your muscles?
Correct answers
They get smaller, they get weak, you can’t grow strong muscles, etc.
Whats a karyotype?
A visual of a persons full chromosome set.