Fertilisation Study guides, Class notes & Summaries

AQA GCSE Biology Inheritance Gametes sex cells Gametes are made by Meiosis Meiosis Produces non identical cells Sexual reproduction -Involves the fusion of Male and female gametes (fertilisation) -mixing of genetic information so we can see variation in offspring Asexual reproduction -one parent -does not involve gametes and no mixing of genetic information -offspring are identical -only involves mitosis Clones identical genetic copies Meiosis -all chromosomes are copied -cell divi...

germinal stage - begins with zygote being formed by fertilisation of the egg and ends when the zygote is implanted in the wall of the uterus (happens after 7 days). 2 week period. zygote - developing organism from the time sperm and egg fuse to about the second week of gestation during which it undergoes rapid cell divison embryonic stage - lasts from the second to around eighth week of gestation

Active phase - 4-8cm, regular contractions 2-5 mins apart and lasting over 60 seconds, cervix is mid to anterior/soft, effaced. Transitional - 8-10cm, can be brief lull in contractions, change in woman's behaviour. Where does fertilisation usually occur? - ANSWER-Ampulla of the uterine tube. What is the dosage of diamorphine and how is it given? - ANSWER-5-10mg (dependent on patient size), 4 hourly and IM. What is Pica? - ANSWER-Craving of non-food items such as clay, soap, coal, e...

what is oviparity? correct answers eggs are laid, with little or no embryonic development in the mother with either internal/external fertilisation - found in invertebrates, fish amphibians, reptiles, birts and monotreme animals what is ovoviviparity? correct answers eggs retained in mother's body until ready to hatch, with internal fertilisation and young are born lice - no placental connection to mother - found in invertebrates, fish, amphibians and reptiles what is viviparity? corre...

PVL1501 SUMMARY NOTES INTRODUCTION TO THE LAW OF PERSONS. INTRODUCTION TO THE LAW OF PERSONS Sub-sec of private law Private law = persons “first law” – sphere of law that governs relationships with humans = concepts & institutions – basic to all other branches of the law Legal subject: Centre of legal world – bearer of rights, duties and capacities – persons in the eye of the law (persona iurus) The Law of Persons determines: 1. Which entities are legal subjects 2. When ...

PASS HUBS1406 - Reproduction and Development 100% Solved Gonad A primary sex organ, such as the ovary and teste Testosterone Male sex hormone Oestrogen A female sex hormone which develops and maintains female sex characteristics Progesterone A female sex hormone which prepares the body for pregnancy Diploid A cell which has two complete sets of chromosomes Haploid A cell which has one complete set of chromosomes Testis A male reproductive structure which produces sperm ...

Edexcel A Level Biology Paper 1 Mark Scheme June 2022 | Advanced Biochemistry | Microbiology and Genetics.A description that makes reference to three of the following: • (contact between sperm and secondary oocyte results in) acrosome reaction (1) • meiosis is completed (1) • cortical reaction takes place (1) • fusion of sperm {nucleus / genetic material} with {nucleus genetic material} of ovum (1) ACCEPT ovum / egg cell / female gamete description e.g. enzymes are released from...

What are the 3 phases of the first stage of labour? - ANSWER-Latent phase - 0-4cm, irregular contractions, cervical canal shortens (3cm to less than 0.5cm). Active phase - 4-8cm, regular contractions 2-5 mins apart and lasting over 60 seconds, cervix is mid to anterior/soft, effaced. Transitional - 8-10cm, can be brief lull in contractions, change in woman's behaviour. Where does fertilisation usually occur? - ANSWER-Ampulla of the uterine tube. What is the dosage of diamorphine an...

GCSE COMBINED SCIENCE: SYNERGY 8465/1F Foundation Tier Paper 1 Life and Environmental Sciences Version: 1.0 Final G/LM/Jun23/E7 8465/1F (JUN2384651F01) GCSE COMBINED SCIENCE: SYNERGY Foundation Tier Paper 1 Life and Environmental Sciences Tuesday 16 May 2023 Morning Time allowed: 1 hour 45 minutes Materials For this paper you must have: l a ruler l a protractor l a scientific calculator l the periodic table (enclosed) l the Physics Equations Sheet (enclosed). Instructions l Use...

Edexcel A Level Biology: Topic 3 Quiz with complete solutions | Latest 2023/2024 Prokaryotic cell -- Cells that don't have a nucleus and other membrane bound organelles. Eukaryotic cell -- DNA=Linear, DNA inside nucleus, no cell wall, mitochondria present, larger ribosomes. Mitochondrion -- Inner of its two membranes folded to form finger-like projections called cristae. Site of aerobic respiration and produces ATP. Nucleus -- Enclosed by envelope composed of two membranes perforated by ...