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2j america: a nation divided, c1845-1877
1l the quest for political stability: germany, 1871-1991
Inter-war germany
1c the tudors: england, 1485-1603
The cold war
Medieval period: 1066 -1509
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1f industrialisation and the people: britain, c1783-1885
2m wars and welfare: britain in transition, 1906-1957
2d religious conflict and the church in england, c1529-c1570
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Zainab
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Inheritance, variation and evolution GCSE Biology study guide covering key concepts of reproduction, DNA, and genetics. This comprehensive resource explores sexual and asexual reproduction, meiosis, DNA structure, protein synthesis, and genetic mutations.
09/06/2023
1896
This unit covers fundamental concepts in inheritance, variation and evolution GCSE Biology. It explores different types of reproduction, DNA structure and function, and genetic processes.
Key points:
Highlight: Understanding these topics is crucial for grasping the mechanisms of inheritance and evolution in living organisms.
This section explores the detailed structure of DNA and the process of protein synthesis.
DNA is composed of repeating units called nucleotides, each consisting of a phosphate, a sugar, and a base. The four bases are A, T, C, and G, which pair specifically (A+T, C+G) through complementary base pairing.
Definition: Complementary base pairing is the specific linking of bases on opposite sides of the DNA helix.
Protein synthesis occurs in two main stages:
Example: Proteins formed through this process can function as enzymes, hormones, or structural proteins.
The final section discusses genetic mutations and their effects on protein formation.
Mutations can be inherited or occur randomly, with certain factors increasing their likelihood:
Highlight: Mutations change the sequence of DNA bases in a gene, potentially altering the protein produced and creating genetic variants.
Understanding genetic mutations is essential for answering inheritance variation in evolution gcse study guide questions and comprehending the mechanisms of evolution.
This section introduces the two main types of reproduction in living organisms: sexual and asexual reproduction.
Sexual reproduction involves the fusion of male and female gametes. In humans, these are sperm and egg cells, while in plants, they are pollen and egg cells. Asexual reproduction, on the other hand, occurs through the division of a single parent cell to produce genetically identical offspring (clones). This process is common in bacteria, plants, and some animals.
Definition: Sexual reproduction is the fusion of two gametes to produce genetically diverse offspring, while asexual reproduction involves a single parent producing genetically identical offspring.
The advantages of sexual reproduction include:
Advantages of asexual reproduction include:
Example: Some organisms, like malaria parasites, use both methods of reproduction. They reproduce asexually in the human host but sexually in the mosquito vector.
This section delves into the process of meiosis and the structure and function of DNA.
Meiosis occurs in human reproductive organs - ovaries in females and testes in males. The process involves:
DNA (deoxyribonucleic acid) is found in the nucleus of animal cells in long strands of chromosome pairs. It has a double helix structure and contains genes, which are small sections of DNA coding for specific proteins.
Vocabulary: A genome is the entire set of genetic material of an organism.
The study of genomes allows scientists to:
Highlight: Understanding DNA structure and function is crucial for GCSE Biology inheritance exam questions.
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Inheritance, Variation and Evolution GCSE Biology Paper 2 : Part 1
Biology - Seperate - Higher GCSE. Contains half of the inheritance, variation and evolution topic on AQA paper 2. Part 2 is found within my other content.
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Zainab
@zainab_02839
·
269 Followers
Follow
Inheritance, variation and evolution GCSE Biology study guide covering key concepts of reproduction, DNA, and genetics. This comprehensive resource explores sexual and asexual reproduction, meiosis, DNA structure, protein synthesis, and genetic mutations.
Access to all documents
Improve your grades
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By signing up you accept Terms of Service and Privacy Policy
This unit covers fundamental concepts in inheritance, variation and evolution GCSE Biology. It explores different types of reproduction, DNA structure and function, and genetic processes.
Key points:
Highlight: Understanding these topics is crucial for grasping the mechanisms of inheritance and evolution in living organisms.
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
This section explores the detailed structure of DNA and the process of protein synthesis.
DNA is composed of repeating units called nucleotides, each consisting of a phosphate, a sugar, and a base. The four bases are A, T, C, and G, which pair specifically (A+T, C+G) through complementary base pairing.
Definition: Complementary base pairing is the specific linking of bases on opposite sides of the DNA helix.
Protein synthesis occurs in two main stages:
Example: Proteins formed through this process can function as enzymes, hormones, or structural proteins.
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
The final section discusses genetic mutations and their effects on protein formation.
Mutations can be inherited or occur randomly, with certain factors increasing their likelihood:
Highlight: Mutations change the sequence of DNA bases in a gene, potentially altering the protein produced and creating genetic variants.
Understanding genetic mutations is essential for answering inheritance variation in evolution gcse study guide questions and comprehending the mechanisms of evolution.
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
This section introduces the two main types of reproduction in living organisms: sexual and asexual reproduction.
Sexual reproduction involves the fusion of male and female gametes. In humans, these are sperm and egg cells, while in plants, they are pollen and egg cells. Asexual reproduction, on the other hand, occurs through the division of a single parent cell to produce genetically identical offspring (clones). This process is common in bacteria, plants, and some animals.
Definition: Sexual reproduction is the fusion of two gametes to produce genetically diverse offspring, while asexual reproduction involves a single parent producing genetically identical offspring.
The advantages of sexual reproduction include:
Advantages of asexual reproduction include:
Example: Some organisms, like malaria parasites, use both methods of reproduction. They reproduce asexually in the human host but sexually in the mosquito vector.
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
This section delves into the process of meiosis and the structure and function of DNA.
Meiosis occurs in human reproductive organs - ovaries in females and testes in males. The process involves:
DNA (deoxyribonucleic acid) is found in the nucleus of animal cells in long strands of chromosome pairs. It has a double helix structure and contains genes, which are small sections of DNA coding for specific proteins.
Vocabulary: A genome is the entire set of genetic material of an organism.
The study of genomes allows scientists to:
Highlight: Understanding DNA structure and function is crucial for GCSE Biology inheritance exam questions.
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Biology - GCSE REVISION GUIDE!! Aesthetic | Summaries | Visual Learners
Biology revision guide - summary of all the content
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Biology - Edexcel triple biology specification and notes PAPER 1
The entire paper 1 biology specification with all the notes you’d need for the exam. With diagrams
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all the year 11 gcse exam notes shortened down and on 4 pages
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I made these notes while watching primrose kitten on YouTube, these helped me achieve a grade 9-9 in my mocks
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Biology - Inheritance, Variation and Evolution GCSE Biology Paper 2 : Part 1
Biology - Seperate - Higher GCSE. Contains half of the inheritance, variation and evolution topic on AQA paper 2. Part 2 is found within my other content.
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1135
1
Average app rating
Pupils love Knowunity
In education app charts in 12 countries
Students have uploaded notes
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