Punnet Squares
This term describes an organism with two different alleles for a trait.
Heterozygous
This type of trait can skip generations and only appears when two recessive alleles are present.
recessive traits
This is the process of creating a genetically identical copy of an organism.
Cloning
This is the passing of genetic information from one generation to the next.
Heredity
In a cross between Rr and rr, this percentage of offspring will show the dominant trait.
50%
If a child has a recessive disorder, this must be true about both parents.
Both parents must have a recessive allele
Reduced genetic diversity can make a population more vulnerable to this.
Disease or environmental change
Genes are sections of this molecule.
DNA
If brown eyes (B) are dominant and a parent’s genotype is Bb, this eye color will be expressed by the parent
Brown eyes
In a pedigree chart, what shape are women usually represented by?
Circles
This is a major negative impact of cloning on populations.
reduced genetic diversity
Put these in order from largest to smallest: DNA, Cell, Chromosome, Gene, Nucleus.
Cell, Nucleus, Chromosome, DNA, Gene
If two parents are both homozygous recessive for blonde hair, this is the only hair color their child can have.
Blonde hair
If a recessive disorder appears in a child but not in the parents, the parents are most likely this.
Parents are carriers
This biotechnology allows scientists to create plants and animals with desired traits.
Genetic engineering or artificial selection
This structure inside the cell contains chromosomes.
In a cross between Bb and bb, this allele can be passed by the heterozygous parent but not by the homozygous recessive parent.
The dominant allele
If a mother is unaffected but has a child with a recessive disorder, this explains how it was inherited.
She has a recessive allele
One positive impact of biotechnology is this medical advancement involving organs or tissues.
Organ and tissue replacement
A gene’s main function is to control or determine this in an organism.
Traits