Tackling and mastering inheritance, selection and variation
Gaining a full conceptual understanding of confusing terminology and concepts with the help of a dynamic teacher
4.53 (20 reviews)
91
students
3.5 hours
content
Jun 2016
last update
$64.99
regular price
What you will learn
1. INHERITANCE
a) INTRODUCTION
Define inheritance
State the meaning of chromosome, gene, DNA and allele
Define a diploid and haploid nucleus
State how many chromosomes there are in a human cell and human sex cell
State how to determine the sex of a person by looking at the karyotype
b) DNA TO PROTEINS. PROTEIN SYNTHESIS
Explain how DNA controls cell function by controlling what proteins are made.
State 3 important proteins in the body: enzymes, antibodies and receptors for neurotransmitters
Explain what the genetic code is
Explain how the sequence of bases in a gene code for the correct order of amino acids in a protein
Explain briefly how a protein is made
c) DUPLICATING CELLS. MITOSIS
Define mitosis
State the use of mitosis in growth, repair, replacement of cells and asexual reproduction
Define meiosis and state its role in gamete function
State that chromosomes are duplicated before mitosis
Outline what happens to chromosomes during mitosis
State the difference between embryonic stem cells and adult stem cells and describe the role of stem cells
d) FORMATION OF GAMETES. MEIOSIS
Define meiosis
Explain how meiosis produces variation by forming new combinations of maternal and paternal chromosomes
State the differences between mitosis and meiosis
e) PHENOTYPES, GENOTYPES AND THE CONFUSING TERMINOLOGY IN INHERITANCE
Use pedigree diagrams to show how features are inherited
Distinguish between genes and alleles
Define phenotype, genotype, homozygous, heterozygous, dominant and recessive
f) BREEDING PLANTS. MONOHYBRID INHERITANCE
Define monohybrid inheritance
Use genetic diagrams to predict the results of monohybrid crosses and calculate phenotypic ratios
Use Punnett squares in crosses which result in more than one genotype to work out and show the possible different genotypes
Explain how to use a test cross to identify an unknown genotype
g) SHARING POWERS. CODOMINANCE
Explain the term codominance
Describe the inheritance of ABO blood groups
State the possible allele combinations of people with blood groups A, B, AB and O.
Use Punnett squares to determine the resulting blood groups of children from parents who have different blood groups.
h) SEX LINKAGE
Describe how sex is determined and inherited in humans
Describe colour blindness as an example of sex linkage
Define a sex linked characteristic
Use genetic diagrams to predict the results of crosses involving sex linkage
2. VARIATION AND SELECTION
a) TALLEST TO SHORTEST. VARIATION
Define variation
Identify and explain examples of variation
Distinguish between genetic variation and phenotypic variation
State the differences between continuous and discontinuous variation
Draw the typical graphs of continuous and discontinuous variation
State that phenotypic variation is caused by both genetic and environmental factors
State that discontinuous variation is mostly caused by genes alone such as the different blood groups
Give examples of genetic and environmental factors that cause phenotypic variation
b) MUTATIONS. HOW WE GET DIFFERENT ALLELES
Define the term mutation
State that mutation is the way in which new alleles are formed
Describe the possible effects of radiation and certain chemicals on the rate of mutations
Describe sickle cell anaemia as an example of a mutation
Briefly describe how gene mutations can result in cancer
c) STICKY CELLS. SICKLE CELL ANAEMIA
Describe sickle cell anaemia as an example of a gene mutation
Describe the symptoms of sickle cell anaemia
Explain the distribution of sickle cell allele in human populations with reference to the distribution of malaria
Use a punnett square to work out the genotype and phenotype of children from parents who have the sickle cell trait
State that the heterozygous condition for sickle cell trait gives resistance to malaria
d) ADAPTING TO THE ENVIRONMENT. ADAPTIVE FEATURES
Define adaptive feature
Define fitness
Interpret images or other information about a species to describe its adaptive features
Explain the adaptive features of hydrophytes and xerophytes to their environments
e) STRUGGLE FOR SURVIVAL. NATURAL SELECTION PART 1
Describe natural selection
Describe evolution as the change in adaptive features of a population over time as a result of natural selection
Define the process of adaptation
f) MUTANT BACTERIA. NATURAL SELECTION PART 2
Describe the development of antibiotic resistant bacteria as an example of evolution by natural selection
Give other examples of natural selection: Darwin's finches, peppered moth, sickle cell anaemia trait
g) SELECTIVE BREEDING
Describe the role of selective breeding in producing varieties of animals and plants with increased economic importance
Describe examples of artificial selection
Outline how selective breeding is carried out
State the differences between artificial and natural selection
Screenshots
Related Topics
871628
udemy ID
6/7/2016
course created date
11/6/2020
course indexed date
Bot
course submited by