Inheritance
Describe the relationship between DNA, genes and chromosomes
Task 1
Use the information in the link below to describe the relationship between DNA, genes, chromosomes and alleles using the diagram below (remember to include key words in your answer):
http://learn.genetics.utah.edu/content/chromosomes/intro/
X
Task 1
Use the information in the link below to describe the relationship between DNA, genes, chromosomes and alleles using the diagram below (remember to include key words in your answer):
http://learn.genetics.utah.edu/content/chromosomes/intro/
X
Task 2
Take a look at the timeline in the link below to discover the history of DNA.
http://www.dnai.org/timeline/index.html
Task 3
Use the interactive link below to revise the structure of DNA and the base pairing rule.
http://www.dnai.org/a/index.html
Task 4
Use the interactive link below to read the information on DNA and to build a DNA molecule.
http://learn.genetics.utah.edu/content/molecules/builddna/
Task 5
Read the information in the link below to answer the following questions.
http://learn.genetics.utah.edu/content/chromosomes/intro/
Describe the structure of DNA. X
Describe the function(s) of DNA. X
Name the three main structures that make up a nucleotide. X
Name the four different bases found in DNA. X
Explain the complimentary base pairing rule. X
Define and use genetic terms
Task 6
The following words are key scientific terms from the inheritance topic. They important to understand, and incorporating them into answers where appropriate can be helpful.
Define each term listed below:
DNA X
Gene X
Allele X
Chromosome X
Punnett Square X
Phenotype X
Genotype X
Heterozygous X
Homozygous X
Recessive X
Dominant X
Purebred X
Variation X
Natural Selection X
Use simple genetic crosses to predict inheritance of certain traits
Task 7
View the video in the link below as an introduction to inheritance of characteristics from parents.
http://www.bbc.co.uk/schools/gcsebitesize/science/edexcel/classification_inheritance/genesandinheritanceact.shtml
Task 8
Use the link below to practise predicting inheritance of genes using Punnett Squares.
http://www.mhhe.com/biosci/genbio/virtual_labs/BL_05/BL_05.html
Task 9
Use the link below to practise predicting inheritance of genes using Punnett Squares.
http://vital.cs.ohiou.edu/steamwebsite/downloads/FurryFamily.swf
Task 10
Watch the video in the link below about Punnett Squares.
http://www.youtube.com/watch?v=d4izVAkhMPQ
Task 11
Click on the link below and test yourself on inheritance and genes.
http://www.bbc.co.uk/bitesize/quiz/q95090745
Describe how sex is determined
Task 12
Watch the video in the link below on sex determination (pay attention to the human example).
http://www.youtube.com/watch?v=kMWxuF9YW38
Extension
http://media.hhmi.org/hl/01Lect1.html
Describe how inheritance provides variation
Task 13
Try the quiz using the links below to test your knowledge on inheritance and variation.
http://www.bbc.co.uk/bitesize/quiz/q19540345
Task 14
Fill in the gaps with an appropriate missing word to make the following paragraphs complete.
Using the following words: parent, variation, genes, random, alleles
When organisms reproduce, not all offspring are necessarily the same. The scientific term for this is X. The traits of organisms can vary greatly, even in organisms with the same parents.
Each characteristic is coded for by X, which are made up of two different versions, called X. Each offspring receives one allele from each X. Which allele is inherited from which parent is completely X and there are multiple possibilities. This gives rise to difference within a population, which is known as genetic variation.
Describe how variation is used by Natural Selection to ensure survival of a species
Task 15
Variation in a species ensures some organisms to survive better which means they are more likely to reproduce and pass on their alleles to the next generation.
If parents possess alleles which allows them to survive better and therefore reproduce, their offspring will inherit those alleles too and will also survive better. Eventually all individuals will possess the advantageous alleles. This is known as survival of the fittest, or Natural Selection.
Task 16
Use the link below to play genetics games with Charles Darwin
http://www.sciencechannel.com/games-and-interactives/charles-darwin-game.htm
Task 17
Watch the video in the link below about natural selection survival of the fittest
http://www.youtube.com/watch?v=AMtT5_AQmLg
Take a look at the timeline in the link below to discover the history of DNA.
http://www.dnai.org/timeline/index.html
Task 3
Use the interactive link below to revise the structure of DNA and the base pairing rule.
http://www.dnai.org/a/index.html
Task 4
Use the interactive link below to read the information on DNA and to build a DNA molecule.
http://learn.genetics.utah.edu/content/molecules/builddna/
Task 5
Read the information in the link below to answer the following questions.
http://learn.genetics.utah.edu/content/chromosomes/intro/
Describe the structure of DNA. X
Describe the function(s) of DNA. X
Name the three main structures that make up a nucleotide. X
Name the four different bases found in DNA. X
Explain the complimentary base pairing rule. X
Define and use genetic terms
Task 6
The following words are key scientific terms from the inheritance topic. They important to understand, and incorporating them into answers where appropriate can be helpful.
Define each term listed below:
DNA X
Gene X
Allele X
Chromosome X
Punnett Square X
Phenotype X
Genotype X
Heterozygous X
Homozygous X
Recessive X
Dominant X
Purebred X
Variation X
Natural Selection X
Use simple genetic crosses to predict inheritance of certain traits
Task 7
View the video in the link below as an introduction to inheritance of characteristics from parents.
http://www.bbc.co.uk/schools/gcsebitesize/science/edexcel/classification_inheritance/genesandinheritanceact.shtml
Task 8
Use the link below to practise predicting inheritance of genes using Punnett Squares.
http://www.mhhe.com/biosci/genbio/virtual_labs/BL_05/BL_05.html
Task 9
Use the link below to practise predicting inheritance of genes using Punnett Squares.
http://vital.cs.ohiou.edu/steamwebsite/downloads/FurryFamily.swf
Task 10
Watch the video in the link below about Punnett Squares.
http://www.youtube.com/watch?v=d4izVAkhMPQ
Task 11
Click on the link below and test yourself on inheritance and genes.
http://www.bbc.co.uk/bitesize/quiz/q95090745
Describe how sex is determined
Task 12
Watch the video in the link below on sex determination (pay attention to the human example).
http://www.youtube.com/watch?v=kMWxuF9YW38
Extension
http://media.hhmi.org/hl/01Lect1.html
Describe how inheritance provides variation
Task 13
Try the quiz using the links below to test your knowledge on inheritance and variation.
http://www.bbc.co.uk/bitesize/quiz/q19540345
Task 14
Fill in the gaps with an appropriate missing word to make the following paragraphs complete.
Using the following words: parent, variation, genes, random, alleles
When organisms reproduce, not all offspring are necessarily the same. The scientific term for this is X. The traits of organisms can vary greatly, even in organisms with the same parents.
Each characteristic is coded for by X, which are made up of two different versions, called X. Each offspring receives one allele from each X. Which allele is inherited from which parent is completely X and there are multiple possibilities. This gives rise to difference within a population, which is known as genetic variation.
Describe how variation is used by Natural Selection to ensure survival of a species
Task 15
Variation in a species ensures some organisms to survive better which means they are more likely to reproduce and pass on their alleles to the next generation.
If parents possess alleles which allows them to survive better and therefore reproduce, their offspring will inherit those alleles too and will also survive better. Eventually all individuals will possess the advantageous alleles. This is known as survival of the fittest, or Natural Selection.
Task 16
Use the link below to play genetics games with Charles Darwin
http://www.sciencechannel.com/games-and-interactives/charles-darwin-game.htm
Task 17
Watch the video in the link below about natural selection survival of the fittest
http://www.youtube.com/watch?v=AMtT5_AQmLg