Podcast
Questions and Answers
Which of the following accurately describes the structure of DNA?
Which of the following accurately describes the structure of DNA?
- A single-stranded helix
- Composed of three strands coiled into a triple helix
- A double-stranded helix with parallel strands (correct)
- Contains only one type of nitrogenous base
In the nervous system, which component is responsible for transmitting electrical impulses to muscles or glands?
In the nervous system, which component is responsible for transmitting electrical impulses to muscles or glands?
- Relay neurones
- Sensory receptors
- Synapses
- Motor neurones (correct)
What is the primary function of stem cells in animals?
What is the primary function of stem cells in animals?
- Producing neurotransmitters
- Differentiating into specialized cells (correct)
- Forming myelin sheaths
- Generating sensory receptors
Which process is responsible for the formation of genetically different haploid gametes?
Which process is responsible for the formation of genetically different haploid gametes?
What is the role of relay neurones in the central nervous system?
What is the role of relay neurones in the central nervous system?
Which statement best describes the importance of cell differentiation in development?
Which statement best describes the importance of cell differentiation in development?
Which of the following is NOT a key stage of mitosis?
Which of the following is NOT a key stage of mitosis?
What is the primary function of mitosis in multicellular organisms?
What is the primary function of mitosis in multicellular organisms?
Which of the following is NOT a characteristic of cancer cells?
Which of the following is NOT a characteristic of cancer cells?
Which of the following is a function of enzymes in biological systems?
Which of the following is a function of enzymes in biological systems?
Which of the following is a key characteristic of diffusion as a method of transport across cell membranes?
Which of the following is a key characteristic of diffusion as a method of transport across cell membranes?
What is the primary role of osmosis in plant cells?
What is the primary role of osmosis in plant cells?
What are the building blocks of DNA?
What are the building blocks of DNA?
Which term describes a section of a DNA molecule that codes for a specific protein?
Which term describes a section of a DNA molecule that codes for a specific protein?
What term refers to different versions of a gene?
What term refers to different versions of a gene?
How is the sex of offspring determined at fertilization?
How is the sex of offspring determined at fertilization?
What causes most phenotypic features, resulting in different characteristics?
What causes most phenotypic features, resulting in different characteristics?
What influences phenotype variation, including differences as a result of mutation and sexual reproduction?
What influences phenotype variation, including differences as a result of mutation and sexual reproduction?
