Bioscience - Study guides, Class notes & Summaries

Nursing 302 MCQ test – Bioscience Questions And Answers

Which is the correct order of gene expression control in eukaryotic cells? A) Posttranslational control, translational control, chromatin structure, transcription control, posttranscriptional control B)Transcription control, posttranscriptional control, translational control, posttranslational control, chromatin structure C)Transcription control, chromatin structure, posttranscriptional control, translational control, posttranslational control D) Chromatin structure, transcription co...

A plant that has purple flowers is crossed with one that has white flowers. The offspring were half white and half purple. What were the genotypes of the parents? A. Pp x pp B. Pp x Pp C. PP x pp D. PP x WW correct answers A. Pp x pp Incomplete dominance is associated with what genotypic ratio in the F2 generation for a monohybrid cross? A. 3:1 B. 1:2:1 C. 9:3:3:1 D. 1:1 E. 1:3 correct answers B. 1:2:1 Gel electrophoresis separates DNA strands on the basis of A. amount of nucl...

A biomarker is a biochemical or physical feature that can be measured objectively as an indicator of a normal or abnormal biological process. correct answers True Elevated glucose is used as a biomarker to indicate which disease state? correct answers d. Diabetes Several biochemical principles are used to identify a specific bio-marker and thereby diagnose a particular disease state. Which of the following is not among the principles that are commonly used? correct answers c. A scan of the...

Distinguish between auto and heterotrophs correct answers Auto- makes their own food for energy Hetero- eats other organisms to gain energy Generalized formula for photosynthesis correct answers Energy + 6CO2 +6H2O ---> C6H12O6 + 6O2 What are the reactants, products, and reducing and oxidizing agents correct answers Reactants- carbon dioxide and water Products- sugar and oxygen gas H2O gets oxidized CO2 becomes reduced Cell structures associated with photosynthesis correct answer...

BIOS 100 Psuedoscience (Latest 2024 / 2025) Questions & Answers with rationales

What is the human genome? correct answers a composite genome derived from multiple donors How many nucleotides are in the human genome? correct answers 3 billion What percentage of gene encoding areas are covered by the Human Genome? correct answers 1-2% What does a complete genome contain? correct answers all the genetic material of an organism What is the central dogma in molecular biology? correct answers DNA is transcribed into RNA and is translated into protein What is the es...

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What day of the menstrual cycle does the endometrium shed down to its basal layer - ANSWER-Days 1-5 What days of the menstrual cycle does the endometrium thicken? - ANSWER-The proliferation cycle days 6-15 What hormone thickens the endometrium? - ANSWER-Oestrogen from the Graafian follicle What day of the menstrual cycle does the endometrium become more vascular? - ANSWER-The secretory phase days 16-28 What hormone makes the endometrium more vascular? - ANSWER-Oestrogen and progester...

absorbance (aka. extinction/optical density) correct answers logarithmic measure of the amount of light absorbed as the light passes through a sample or substance; 0-2 au amplitude correct answers height of a wave (power); determines the pitch of sound waves autonomy correct answers respect for persons, allowing for informed consent beneficence correct answers do no harm, known as utilitartianism bioethics correct answers study of decision-making as it relates to moral decisions that...