Mutations
What is a mutation?
genetic change.
How many helix are in DNA?
double helix.
WHat are the two letters standing for in a punnet square?
DOminant and recessive gene.
What happens during meiosis?
two rounds of cell division to produce four haploid cells from a single diploid cell.
What happens during mitosis
cells split and turn into daughter cells.
Can you change mutations?
No
How many chromosomes does everyone have
who made the punnet square ?
Reginald Punnet
what does Meitos do ?
it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes.
What are the 4 stages of mitosis?
prophase, metaphase, anaphase, and telophase.
Which is a genetic mutation.
reservation , Militios, Insertion
Insertion
Are DNA strands 5 to 3 or 3 to 5?
5′-3′ direction.
what does a punnet square show
a table in which all of the possible outcomes for a genetic cross between two individuals with known genotypes are given.
What mistake can be made from meiosis
duplications, deletions.
what is the difference between mitosis and meiosis
Meiosis is genetically different, while mitosis is genetically identical.
is sickle cell contagious
no
what does dna stand for
deoxyribonucleic
what is a punnet square?
a table in which all of the possible outcomes for a genetic cross between two individuals with known genotypes are given.
what happend swhen meiosis disfuntiocns?
down syndrome
Is mitosis asexual?
yes
What s the most common genetic mutation.
Down syndrome
What are the 7 parts that make up DNA?
nitrogenous base, a five-carbon sugar (deoxyribose), and a phosphate group
When was the punnet square created
1905
How many stages are in meiosis.
4