DNA
In the cell nucleous
A and T go together.
TRUE or FALSE
TRUE
Down syndrome is when they have an extra ___ chromosome for a total of 47 chromosomes.
21
What are alleles?
The genes in a pair. Both alleles carry DNA instructions for the same thing, however, the instructions may be different. Example is a brown eye allele from one parents and blue eye allele from the other.
Humans have ____ chromosomes
46
What does DNA stand for?
DeoxyriboNucleic Acid
C goes with _____
What genetic disorder are males born with an extra X chromosome (XXY).
Klinefelter's syndrome.
What are the 2 types of cell division?
Mitosis and Meiosis
Mutations can be harmful, helpful, or neutral to an organism.
TRUE or FALSE
TRUE
DNA can be compared to a twisted ladder called a___________
Double Helix
Incorrect base pairing like A-C can cause what?
A genetic disorder.
What genetic disorder are females born with only one X chromosome or they are missing part of one X chromosome
Turners syndrome
Mitosis makes 2 cells that are ______
Mesois uses an ____ and sperm.
2. Egg
Down syndrome has an error of an extra chromosome can happen during _______ in either male or female ________.
1. Meiosis
2. Gametes
DNA acts like a ________ for living things.
Blueprint
Recipe
The way that the base pairs are arranged is called the _______ ______
Genetic Code
Turners syndrome is an error during _______.
Meiosis
Why do cells divide?
What are amino acids?
Small things in the body that can attach to each other like legos.
What is the function of DNA?
stores instructions for making other large molecules, called proteins.
List what each letter stands for. MUST GET ALL FOR FULL POINTS!
A -
T -
C -
G -
A - Adenine
T - Thiamine
C - Cytosine
G - Guanine
What is cystic fibrosis?
A genetic disorder in which the body produces abnormally thick mucus in the lungs and intestines, making it hard to breathe.
Explain what a recessive and dominant trait is?
A dominant trait is the one that overrules the other. The trait that is overruled is the recessive trait. An example is having a parent with blue eyes and one with brown and your eyes are blue meaning the blue eyed allele was the dominant trait.
What does Tay Sachs disease do? (Genetic disorder)
Causes deterioration of mental and physical abilities which starts at 6 months of age and usually results in death by the age of four