Random Biology
What are the three types of RNA?
mRNA (messenger)
tRNA (transfer)
rRNA (ribosomal)
Both organisms benefit from this type of symbiotic relationship.
mutualism
Cancer cells divide and duplicate uncontrollably
Describe sexual reproduction.
Sexual reproduction requires 2 parents, fertilization, and produces genetically different offspring.
What is the basic unit of life?
Cells
Mendel was a careful researcher who studied the inheritance of certain traits in garden peas. What is the name for his type of science?
Genetics
What is the function of the golgi body?
Modifies, sorts, and packages proteins to be shipped to other parts of the cell (UPS/FedEx)
What main organelle do plant cells have that animal cells do not have, responsible for structure?
Cell wall
First person to see and name cells?
Robert Hooke
The process by which water moves through the cell membrane to balance out a high concentration of solutes.
osmosis
A pea plant has the genotype Bb. What describes this type of genotype?
heterozygous or hybrid
The movement of ions, and molecules across cell membranes without the need for energy input.
passive transport (diffusion, facilitated diffusion, osmosis)
What is the cell theory?
cells are the basic unit of life.
all living things (plants/animals) are made of cells.
new cells are made from existing cells during cell division
Creates clones
asexual reproduction
Are viruses living or nonliving? WHY?
Nonliving; they cannot reproduce on their own...needs a host. (Does have DNA & evolve over time)
Typically humans have how many chromosomes total?
23 pairs or 46
What is the function of a lysosome?
"Garbage man", breaks down waste using digestive enzymes.
What are the levels of organization from smallest to largest?
Which type of movement across a cell's membrane requires energy supplied by ATP?
Active transport
What type of cell is a chloroplast found in?
Eukaryote; plant cell
Explain Chargaff's rule of base pairing.
in DNA molecules, [A] = [T] and [C] = [G]
Which characteristic do all plants, animals, protists, and fungi have in common?
They are eukaryotic (have a nucleus)
What organelle is responsible for producing energy in animal cells?
mitochondria
What is homeostasis?
The ability to maintain normal internal conditions through body systems working together.
Describe and name the three different genotypes an offspring could potentially have.
Homozygous recessive (same/lowercase)
Homozygous dominant (same/capital)
Heterozygous (different)