Chromosome theory Study guides, Class notes & Summaries

Modern cell theory - Answer- All known living things are made up of one or more cells. All living cells arise from pre-existing cells by division. The cell is the fundamental unit of structure and function in all living organisms. The activity of an organism depends on the total activity of independent cells. Energy flow (metabolism and biochemistry) occurs within cells. Cells contain DNA which is found specifically in the chromosome and RNA found in the cell nucleus and cytoplasm. All cel...

OB HESI FINAL Exam with 100% Correct Answers 2023 A client who delivered an infant an hour ago tells the nurse the she feels wet underneath her buttock. The nurse notes that the perineal pad is saturated and the client is lying in a 6-inch diameter pool of blood. Which action should the nurse implement first? A. Cleanse the perineum B. Obtain a blood pressure C. Palpate the firmness of the fundus D. Inspect the perineum for lacerations - Correct answer-Correct Answer: C A firm uterus i...

WJEC Criminology Unit 2 Exam Prep (Latest 2024/ 2025 Update) Questions and Verified Answers| 100% Correct| Grade A Q: What is the XYY Theory ? Answer: The XYY theory is where some males have an extra Y chromosome which makes them more aggressive. Criminality is genetic, and these people with an abnormality are more likely to commit crime. Q: Strengths of XYY Answer: Adler found that it is possible that aggressive and violent behavior links partly to genetic factors. Jaco...

What comes under Biological theories? - CORRECT ANS Genetic theories, Physiological theories What comes under Genetic theories? - CORRECT ANS 'XYY' theory, twin study, adoption study What is the 'XYY' theory? - CORRECT ANS A male having an extra Y chromosome also known as super males What did Jacob et AL (1965) suggest about XYY? - CORRECT ANS Males with XYY chromosomes are more aggressive and thus more inclined to be more violent then males with a single Y chromosome What did ...

IB Biology Unit 1 Latest Update Graded A+ Cell theory 3 main principles All organisms are composed of one or more cells cells are the smallest units of life all cells come from pre-existing cells 7 functions of life (MR H GREN) metabolism reproduction homeostasis growth excretion response nutrition Paramecium unicellular membrane of the kingdom known as Protista. Look at powerpoint on isa247 to see how this organism displays the functions of life. chlorella single-cell...

IB Biology Paper 1 Questions And Answers Already Passed Prokaryote or Eukaryote in paramecium? Compartments in the cell indicates that it's a eukaryote Property of water which makes it suitable for living? Thermal Watson and Crick discovery about DNA DNA is double helix What occurs in meiosis but not in mitosis? Homologous chromosomes pair up Variation within a population Fertilization and mutation properties of stem cells they can differentiate phospholipid bilayer the...

genetics exam 1 chapters 1-5 questions & answers 2024 mendel's contributions - ANSWER-1. traits inherited in predictable way 2. traits controlled by pair of genes 3. pair segregates during gamete formation diploid - ANSWER-a condition in which each chromosome exists in pairs; having two of each chromosome (2n) diploid number - ANSWER-members of each species have a characteristic number of chromosomes haploid - ANSWER-cell or an organism having one member of each pair of homolog...

mitosis - Answer-division of the nucleus -results in two identical daughter cells -direct duplication of genetic material -no change in chromosome number -10% of cell cycle interphase - Answer-90% of cell cycle -3 phases: G1, S, G2 G1 - Answer-chromosomes unfold, organelles multiply, membranes are synthesized S - Answer-chromatin is replicated G2 - Answer-preparation for cell division centromere - Answer-specialized region of the chromosome where sister chromatids are attached phragmo...

IB Biology Topic 1: Cell Biology Latest Update Graded A Cell theory The theory that cells form the fundamental structural and functional units of all living organisms. Differentiation The expression of a particular gene(s) and not others in order for cell specialisation. Emergent properties The idea that the sum of an organism is more than the parts interacting and combining. Living things become more complex as they move (from individual cells to organ systems). Multicellular...

______ introduced the theory of evolution by natural selection in 1859. correct answer: Charles Darwin According to evolutionary developmental psychologists, many evolved psychological mechanisms are correct answer: Domain-specific _____, the units of hereditary information, are short segments of deoxyribonucleic acid (DNA). They help cells correct answer: Genes Scientists have found that certain genes become turned on or off as a result of exercise mainly through a process of correc...