DAT Destroyer Bio Section Flashcards
- Assuming Hardy- Weinberg conditions, a certain disease has an incidence of 1 in 10,000. The disease is autosomal recessive. What is the carrier frequency?
1 in 50
- Consider the cell membrane. It is often said it can act as an insulator. The reason is that:
Lipids that comprise it are uncharged
- Consider a population of rodents in which a black tail (B) is dominant to a bald tail (b). If black tail shows 64% of the population, what is the frequency of the dominant allele?
0.40
- Which cell will normally give lactate as the end product of glycolysis?
Erythrocyte
- Consider the start codon AUG. In a mitochondrion, this codon will code for which amino acid?
N-formyl methionine
- A mycorrhiza is a:
Fungus-plant relationship
- Which vitamin is called the “sunshine vitamin” and is most closely associated with calcium absorption and made by the skin?
Vitamin D
- Which statement is false?
A bacteriostatic drug kills bacterium at drug serum levels in a patient
- Which anatomical term is incorrectly matched?
Proximal: farthest from the beginning of a structure
- Molecular chaperones are involved with the folding and unfolding of proteins. They assist in the formation of proteins:
Tertiary structure
- The shaft of a long bone is called the:
Diaphysis
- Which disease is incorrectly matched?
Cushing’s syndrome: a decrease in cortisol production is noted
- What is true regarding hyperpolarization?
K+ ions diffuse out of the cell
- Biome distribution is most affected by:
Soil type, climate, and topography
- The use of cocaine will increase ______ in the synapse and lead to a euphoria:
Dopamine
- Hypophosphatemia is a pathology in which phosphate deficiency is noted. This pathology causes rickets, or bow- leggedness. A normal woman marries a male with hypophosphatemia. The couple has 2 sons that are normal and 2 daughters that have this disease. What type of disease is this?
X- linked dominant
- A geneticist discovered that a mother had 69 chromosomes rather than the normal 46 chromosomes in each cell. This rare chromosomal abnormality is best termed:
Triploidy
- Which statement is false?
The pia mater contains few blood vessels but is rich in proteins and lipids
- Which is incorrectly matched?
Ventricles: deep grooves highly abundant in sensory neurons
- Which of the following possess a homodont dentition?
A reptile
- A Haversian canal, with its surrounding lacunae, canaliculi, concentric lamellae, and osteocytes in compact bone constitutes an:
Osteon
- Which statement is false?
Globular proteins are hydrophobic and include hemoglobin and myoglobin
- Which statement is false?
a) Protobionts include liposomes, coacervates, and proteinoid microspheres
b) The first plovers of life may have formed on clay or hot rocks
c) They Urey- miller experiment tested the hypothesis of how life began on Earth
d) The Urey- miller experiment established the possibility that life arose from abiotic (nonliving) production of biomolecules
e) None. All statements are true
- Consider the zona pellucida which is a jelly coating composed of glycoproteins designated as ZP1, ZP2, and ZP3. Binding to which of them would allow sperm to adhere to the zona pellucida?
ZP3