Podcast
Questions and Answers
Which of the following describes the primary function of hemoglobin found in red blood cells?
Which of the following describes the primary function of hemoglobin found in red blood cells?
- To facilitate the process of blood clotting after an injury.
- To bind and transport oxygen throughout the body. (correct)
- To transport carbon dioxide from the tissues to the lungs.
- To defend the body against pathogens and infections.
During DNA replication, what is the role of DNA polymerase?
During DNA replication, what is the role of DNA polymerase?
- To proofread and correct errors in RNA sequences.
- To unwind the double helix structure of DNA.
- To synthesize new DNA strands using the existing strand as a template. (correct)
- To initiate the process of transcription by binding to promoter regions.
In genetics, if a heterozygous individual exhibits a phenotype that is an intermediate blend of both alleles, what type of inheritance pattern is being displayed?
In genetics, if a heterozygous individual exhibits a phenotype that is an intermediate blend of both alleles, what type of inheritance pattern is being displayed?
- Codominance
- Incomplete Dominance (correct)
- Polygenic Inheritance
- Complete Dominance
What is the critical role of mRNA (messenger RNA) in the process of protein synthesis?
What is the critical role of mRNA (messenger RNA) in the process of protein synthesis?
Which process accurately describes the conversion of a liquid into a gaseous state?
Which process accurately describes the conversion of a liquid into a gaseous state?
What is the role of the diaphragm in the process of breathing?
What is the role of the diaphragm in the process of breathing?
Differentiate the primary factor distinguishing renewable resources from non-renewable resources.
Differentiate the primary factor distinguishing renewable resources from non-renewable resources.
How does a dominant allele influence the expression of a trait when paired with a recessive allele?
How does a dominant allele influence the expression of a trait when paired with a recessive allele?
Flashcards
Alveoli
Alveoli
The part of the respiratory system responsible for gas exchange.
Red blood cells
Red blood cells
Blood cells that carry oxygen throughout the body.
Transcription
Transcription
The process of copying DNA into RNA.
Mutation
Mutation
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Mitochondria
Mitochondria
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Natural selection
Natural selection
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Codominance
Codominance
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Diaphragm
Diaphragm
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Study Notes
Respiratory System
- Gas exchange occurs in the alveoli.
- Ventilation is the process of air moving in and out of the lungs.
- Oxygen is the primary gas exchanged in the alveoli.
- CO2 is the gas plants take in during photosynthesis.
Blood
- Red blood cells carry oxygen, using hemoglobin for transport.
- Platelets aid in blood clotting.
- Water is the primary component of blood plasma.
- Nerve cells are not a component of blood.
Genetics and Inheritance
- Alleles are different forms of a gene.
- Transcription is the process of DNA being copied into RNA.
- Mutations are changes in the DNA sequence.
- Genes are the basic unit of heredity.
- Incomplete dominance results in a blend of traits.
- Polygenic inheritance involves multiple genes influencing one trait.
- Codominance is shown in blood types A and B in the AB blood type.
- Dominant alleles are always expressed and can mask recessive alleles.
- Recessive alleles are expressed only in a homozygous condition.
- Gene flow is genetic variation resulting from mating within a population.
- CRISPR technology is a method of genetic modification.
- Alleles are different versions of a gene.
Cell Biology
- Mitochondria are responsible for energy production in cells.
- mRNA carries genetic code from DNA to ribosomes.
- DNA polymerase synthesizes new DNA strands during DNA replication.
- Different forms of a gene are called alleles.
- Mutations are changes in the DNA sequence of an organism.
Resources
- Wind is a renewable resource.
- Natural gas is non-renewable.
- Coal is a fossil fuel, a type of non-renewable resource.
- Solar energy can be replenished in a short time frame.
- Renewable resources can be replenished naturally.
- The primary factor differentiating renewable from non-renewable resources is their availability and replenishment rate.
Circulatory System
- Veins contain valves.
- Pulmonary arteries carry deoxygenated blood to the lungs.
- The septum separates the left and right sides of the heart.
Natural Selection
- Natural selection is the process where individuals better adapted to their environment survive and reproduce.
- The main purpose of natural selection is to allow the most adapted individuals to survive.
Other Concepts
- O blood type is a universal donor.
- CO2 is the main greenhouse gas produced by human activities.
- The primary purpose of genetically modifying crops is to improve yield and resistance.
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