DNA Structure
What is the structure of a DNA strand?
A Double Helix
AA is..?
Dominant
What is Insertion?
A nucleotide is added when it isn't needed.
What is the first phase of Meiosis?
Prophase
What does Mitosis produce?
Two diploid daughter cells.
The structure of an RNA strand is...
A single helix
bb is...?
Recessive
What do Point mutations affect?
Only one nucleotide pair.
What phase is when the chromosomes separate?
Anaphase
Example of mitosis.
A star fish regenerating lost arms
What are the purines?
Adenine and Guanine
Hh is...?
Heterozygous
What are Silent mutations?
When there is no change to the protien.
Meiosis produces...
4 haploid cells
How many phases are in Mitosis?
4
What are the pyrimidines?
Cytosine and Thymine
What is incomplete dominance?
When a new phenotype is expressed from the alleles.
What is substitution mutation?
When a nucleotide is replaced with a different one.
How many divisions are in Meiosis?
2
What is the purpose of Mitosis?
The purpose of Mitosis is for growth and the replacement of worn out cells.
True or False
Uracil is part of DNA
False
What is the difference between genotypes and phenotypes? Give an example.
Genotype is the genetic heritage or the unique sequence of DNA. Phenotype is the physical observable traits of an individual. GG would be an example of a genotype and hair color, eye color, or blood type is an example of phenotype.
What is translocation mutation?
When a DNA segment moves to a different location.
What is Metaphase?
When the align in the center.
What is the difference between Mitosis and Meiosis?
Mitosis produces body cells and for growth while Meiosis produces for reproduction.