DNA
The molecule that holds genetic information in cells.
What is DNA?
True or False: All living things have DNA
True
A tool used to predict the possible genotypes of an offspring using the genotypes of specific parents.
What is a punnet square?
Offspring inherit traits from their __________.
What is parents?
DNA is found in this part of the cell.
What is the nucleus?
Adenine, Thymine, Guanine, and Cytosine are the four of these found in DNA.
What are bases?
The allele is only expressed in the phenotype when two of these are present.
What is a recessive gene?
If the sequence of DNA is AACGTG, this is the matching sequence.
What is TTGCAC?
The shape of DNA is called this.
What is a double helix?
Cytosine (C) always binds with this base.
What is Guanine (G)?
A characteristic such as brown eyes or curly hair.
What is a trait?
The allele will be expressed in the phenotype if one or two copies of this is present in the genotype.
What is a dominant gene?
The combination of alleles (two letters) that you inherit.
What is genotype?
These are tightly wound packages of DNA.
What are chromosomes?
Adenine (A) always binds with this base.
What is Thymine (T)?
A plant’s seeds get one gene for purple flowers and one gene for white flowers. Its flowers turn out purple. This means ________ flowers is the dominant allele.
What is purple?
The physical characteristics that result from the genotype.
What is phenotype?
The two scientists that discovered the shape of DNA.
Who are Watson and Crick?
Complete a Punnett square for a cross of the genotypes Tt (tall) and tt (short).
What is Tt...tt
Tt...tt
A rabbit with black fur (BB) is crossed with a rabbit with white fur (bb). This is the percent chance that the offspring will have black fur.
What is 100%?
The number of chromosomes in human cells.
What is 46?