January 2024
What are the properties of a rock are a result of what?
Result of how the rock formed
what does DNA stand for?
Deoxyribonucleaic acid
Contrast Trait and Allele
Characteristic passed from 1st generation to next
What is an invertebrate?
Animals lacking a vertebrae (backbone)
How many phases are in Mitosis? And what are they called?
4 (Prophase, Metaphase, Anaphase, Telophase)
Describe the structure of the nucleus in an animal cell
Round ball-like structure
What is the function of DNA
It's the molecule that stores genetic information. DNA is heritable and also makes proteins.
What does it mean when something is heterozygous
having two different alleles of a particular gene or genes
What type of animals are Barnacles and Copepods?
Crustaceans
Which cells does mitosis and meiosis occur in?
Somatic cells in mitosis and germ cells in meiosis
How do multicellular organisms begin and form
Begin as a single cell, repeatedly divides
When one nucleotide is changed but doesn't change the amino acid sequence of the protein
what does it mean when something is homologous
What is artificial selection?
Process of changing a species by breeding
what are the products of mitosis and meiosis?
Mitosis: 2 identical daughter cells
Meiosis: 4 genetically unique daughter cells
Why do plant cells need both Mitochondria and Chloroplasts ?
They need energy to make/store energy and carry out photosynthesis
Describe a missense mutation
When one nucleotide is changed and it causes one single amino acid in the protein to be different.
What are the 2 gamete cells in humans
Egg cells, sperm cells
What is a Heritable Trait?
Trait that has the ability to be passed down from one generation to the next
Why do cancer cells divide more than healthy cells
They do not respond to factors that regulate growth
what does DNA contain?
Contains the genetic blueprint for life.
Describe a nonsense mutation
When one nucleotide is changed and it results in a "stop" codon causing the protein to be shores compared to the original.
How many alleles do each gametes contain in a dihybrid cross?
4
What is an adaptation?
A feature that lets an organism survive and reproduce in its environment
Why do cells complete crossing over?
It allows daughter cells of Meiosis to be genetically unique