Genetics
True or False: The dominant gene always shows
True
What is a genotype?
The actual genes you have.
What is a Phenotype?
The genes you express
What is a factor that alters natural selection
Either of the following
Environment
Climate
Predators
Food
Disease
What are physical traits?
General physical characteristics of an organism.
How can you express the recessive gene?
You can express the recessive gene if both parents are carriers of the recessive gene.
If you have the dominant gene and recessive gene, what is your genotype?
Heterozygous
If you have the recessive gene for blue eyes, and the dominant gene for brown eyes you are heterozygous. What is your phenotype?
A homozygous dominant gene (BB) is crossed with a Homozygous recessive (Bb) gene what is the only genotype that can be created?
Who controls the control variable?
YOU DO
What do genes specify, and specifies gene?
Genes specify traits, and alleles specify genes
If you carry two dominant genes, what is your genotype?
Homozygous dominant
What is the difference between a genotype and a phenotype?
Genotype is the genes you have, and the phenotype is the genes you express or see.
Octopus
Camelina
Tawn frog mouth owls
What does DNA stand for?
Deoxyribonucleic Acid
What are genetics?
Genetics are the study of inherited characteristics.
If you carry two recessive genes, what is your genotype?
Homozygous recessive
Freckles is a dominant gene. What can the genotypes be?
Heterozygous, or homozygous dominant
What base pairs with A
T
What are four traits humans have?
Eyes, hair, height, skin
Who discovered genetics?
Gregor Mendel discovered genetics in the 19th century.
How did Gregor Mendel learn about genetics
Pea plants
Homozygous dominant, and heterozygous
What base pairs with C
Name the three molecules that make up a nucleotide of DNA
Phosphate group
Sugar
Nitrogen base A, C, T, G