Genetics Test Study Set

STUDY
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Genetics
The scientific study of heredity.
Heredity
The passing of characteristics from parents to offspring.
Traits
Specific physical characteristics that can be observed using your senses.
Gregor Mendel
European monk who is known as the "Father of Genetics"
Genes
Factors that control traits.
Alleles
All of the different forms of a gene.
Dominant
The allele that will always show up.
Recessive
The allele that is hidden in the presence of the dominant allele.
Dominant
The letter "T" would indicate a _______ allele.
Recessive
The letter "t" would indicate a _______ allele.
Genotype
An organism's genetic make up - combination of alleles.
Phenotype
An organism's physical appearance of a trait.
Purebred
Having identical alleles.
Hybrid
Having different alleles.
Punnett Square
A tool that helps predict outcomes of a genetic cross.
Homozygous
Having a genotype like TT.
Heterozygous
Having a genotype like Tt
Acquired
Types of traits that you learn through experiences.
Pea
Type of plant that Mendel was famous for studying in his monastery.
Purebred
Both of these genotypes are:
Hybrid
Both parents in this cross are considered:
Punnett Square
This is an example of a:
3
If green is dominant to yellow, how many offspring are green?
1
If green is dominant to yellow, how many offspring are yellow?
Sex
Which type of cell in the body contains half the number of chromosomes?
23
What is the HUMAN number of chromosomes found in our sex cells?
46
What is the HUMAN number of chromosomes found in our body cells?
19
A typical house cat has 38 chromosomes in a body cell. How many chromosomes in each sex cell?
80
A typical pigeon has 40 chromosomes in a sex cell. How many chromosomes in each body cell?
2
The number of alleles you inherit.
Chromosomes
The chromosome theory of inheritance states that genes are carried from parents to offspring on these:
XX
Genotype of a female.
XY
Genotype of a male.
75%
What is the probability (%) of getting a dominant genotype in this punnett square?
25%
What is the probability (%) of getting the recessive genotype in this punnett square?