Step 4: The enzyme, DNA ligase, secures each of the new DNA strands formed with free nucleotides (monomers) with complementary base pairing. Random Segregation of chromatids (chromosomes) occurs in Anaphase II of Meiosis II. Remember a chromatid is a single-stranded chromosome and as stated earlier in the definitions. Biology BIO MODULE 5 – HEREDITY. Biology Module 5: Heredity (Terminology Study) Make the most of your study session and start revising for HSC – Biology with the following Practise Multiple Choice quiz. Depending on the nucleotide, the nitrogenous base can either be adenine, thymine, cytosine or guanine. (3 marks), (Investigate the structure and function of proteins in living things). 2a. As outlined in this article, HSC Biology Module 5: Heredity focuses on “a lot of essential aspects of genetics. 1. So, microtubules effectively join centrosomes and chromosomes together. The syllabus, assessment and reporting information and other support materials for the Biology course. HSC Biology – Module 5: Heredity – Reproduction Study Notes Page 3 of 6 o Seed dispersal - Following successful pollination and fertilisation of the flower, the seed develops - It is an advantage for a plant to spread or disperse its seeds over a wide The first HSC examination for the new Biology Stage 6 syllabus will be held in 2019. A survey was conducted to determine the phenotype prevalence in dogs that had long coats compared to the number that had short coats in the dog population. HSC Biology – Module 5: Heredity – Genetic Variation Study Notes Page 3 of 4 Incomplete dominance - Occurs when neither allele of a gene is dominant over the other, so organisms with a heterozygous genotype will express and have a phenotype which is a blend of the two alleles. “Mitosis is a driving force for cell growth”. sperm with egg or vice versa) to form a zygote. Get Started. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Metaphase: During metaphase, the chromosomes line up above each other along the poles the cell. In addition to crossing over in meiosis, the processes of independent assortment and random segregation during meiosis also help increase variation in the resulting offspring. Notes for the OCR A Level Biology module: Module 5: Communication, Homeostasis and Energy. Unlike independent assortment, we are dealing with individual chromatids here instead of homologous chromosome pairs. Each nucleotide has a deoxyribose sugar molecule, a phosphate molecule (negatively charged) and one of the four nitrogenous base (adenine (A), thymine (T), guanine (G) or cytosine (C)). ... Exam-style questions and solutions; Watchouts; All written to HSC examination standard. Centrosomes play an important role in the later stages of mitosis. Biology module 5 and 6 guide (docx 113.95 KB) Module 5 reproduction unit of work (docx 48.97 KB) Genetic variation and human evolution resource (pdf 142.96 KB) Module 7 guide (docx 98.27 KB) Module 7 infectious disease assessment task (docx 49.76 KB) Module 7 responses to pathogens unit of work (docx 47.54 KB) There are two terms that you need to know before we get start understanding the diagram! (1 mark), In a variety of sunflower plants, the allele for thick stems, is dominant over the allele for thin stems. (4 marks). This would lead to the separation of the two DNA strands. There are still two sets of pairs illustrated in the somatic cell after interphase! This HSC Biology video explores the hormones in fertilisation and implantation. Also note that a chromosome is made up of DNA and protein. xplain the mechanisms of reproduction that ensure the continuity of a species, by analysing sexual and asexual methods of reproduction in a variety of organisms, including but not limited to: a) In DNA transcription, a complementary mRNA molecule is produced. (2 marks) Question 2. Beta thalassemia is an inherited blood disorder that reduces the body’s production of haemoglobin. We call them homologous pairs. Add to cart. Past HSC questions and answers 2001–2014 by Module 2015–2018 by Year Three Sample HSC Examinations and answers S1_Biology_2019_Prelims.indd 1 23/01/2019 4:18 pm Free-to-download Sample Tests with answers model the processes involved in cell replication, including but not limited to: – mitosis and meiosis (ACSBL075) – DNA replication using the Watson and Crick DNA model, including nucleotide composition, pairing and bonding (2 marks) Question 2. Art of Smart (8 marks), DNA replication is described as a ‘semi-conservative’ process. So, after DNA replication, there are still 23 sets of chromosomes in humans like there is 2 sets of chromosomes illustrated in the diagram. HSC – Biology - Module 5 - Heredity quantity. (5 marks), (Assess the effect of the cell replication processes on the continuity of species). Questions may require candidates to integrate knowledge, understanding and skills developed through studying the course. There are three alleles of the B gene: B, B+, and Bo. Explain your answer. DNA is a polymer and it is made up of many repeating monomer units called nucleotides. Biology : past HSC questions, 2001-2014 by module, 2015-2018 by year, past 2019 HSC paper, three sample HSC exams Biology in focus : year 12 Brave New World : Year 11 Advanced English Module B : Critical study of literature, Student book. 3. On this page you can read or download hsc module 5 chemistry exam questions pdf in PDF format. In last week’s notes, we touched on Darwin’s Theory of Evolution by Natural Selection and how reproduction plays an important role in it. Before we can start to learn how DNA replication actually works, we should first learn some new definitions. (1 mark), a) Name ONE technology that can be used to determine inheritance patterns in a population. The Biology examination specifications can be found in the Assessment and Reporting in Biology Stage 6 document. Independent assortment is the process where the alleles specifying for different genes (in non-homologous chromosomes) assort themselves independently. To find out more and get started with an inspirational tutor and mentor get in touch today! You’ll be covering the genetics of both plants and animals and how understanding of genetics applies to processes in the real world.”. Examples of both objective-response questions and short-answer questions for each … It will not be ideal for a parent with unfavourable characteristics to be passing on undesirable characteristics (allele combinations) to offsprings via mitosis. Explain how crossing over affects the inheritance of genes. Module 8 | Non-infectious disease and disorders Content 5: Technologies and disorders Lesson 1 | Disorders.

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