Test 1
The smallest unit of life is a(n)
Cell
Which organelle is the powerhouse of the cell
Mitochondria
Tissue regeneration and repair involves cell division through what process?
Mitosis
Transcription is best described as
the synthesis of RNA using DNA as a template
What is the only allowed base pairing scheme in DNA?
A-T C-G
Each nucleotide monomer is composed of
a sugar, a phosphate and a base.
A cell that contains a large central vacuole is most likely a _______ cell.
Plant
When is a haploid cell generated?
Meiosis
What was the name of the Austrian monk who used pea plants to study inheritance patterns?
Gregor Mendal
Where does transcription take place
In the Nucleus
Phospholipids are an important part of cell structure because they
form lipid bilayers such as the plasma membrane
what is the difference between simple diffusion and active transport
Active uses ATP
State The order of mitosis
Prophase, Metaphase, Anaphase, Telophase
If an individual with a dominant phenotype is crossed with an individual with a recessive
phenotype(aa), 6 of their 11 offspring show the recessive phenotype. What is the genotype of the first
parent with the dominant phenotype?
Aa
Which nitrogenous base in DNA is replaced by uracil in RNA?
Thymine
The four main groups of biological molecules are
Protein, Nucleic acid, carbohydrate, fats
A white blood cell at the site of a puncture wound engulfs a bacterial cell and a large internal vesicle forms within the white blood cell. This is an example of
Phagocytosis
If DNA damage is discovered and cannot be repaired, cells will undergo a program of cell death. This is called what?
Apoptosis
Two pea plants heterozygous for inflated pods are crossed. Constricted pods are the recessive phenotype. Approximately what percentage of offspring will have inflated pods?
75%
How many nucleotides are there in a single codon
3
Which of the two functional groups below are always found in amino acids?
amino and carboxyl
Hydrolytic enzymes that break down proteins are most found in what organelle?
Lysosome
Which phase of the cell cycle does the cell have the most DNA?
G-2 Phase
In the human ABO blood types, the four basic blood types are type A, type B, type AB,
and type O. The A and B alleles are known to determine ________.
Codominant traits
Who solved the structure of DNA?