There are approximately 20,000 genes in the human genome. A mutation, or permanent variation, in just one gene can lead to a genetic condition. Knowing what causes a genetic condition is the first step in understanding how, potentially through ongoing research in gene therapy, healthcare providers might be able to treat these conditions differently.
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This is a video from the free online course Genealogy: Researching Your Family Tree from University of Strathclyde, available on FutureLearn.com: http://ow.ly/ngjh50yDJ6b
An interesting look at how the Y chromosome is passed on to males through the different generations, much like a surname is passed down.
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Dig into the essential role that mitochondrial DNA played in the evolution of living things on Earth, and find out why it’s still evolving.
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Inside our cells, each of us has a second set of genes completely separate from our 23 pairs of chromosomes. And this isn’t just true for humans— it’s true of every animal, plant, and fungus on Earth. This second genome belongs to our mitochondria, an organelle inside our cells. So why are they so different from anything else in our bodies? Devin Shuman explores the purpose of mitochondrial DNA.
Lesson by Devin Shuman, directed by Luísa M H Copetti, Hype CG.
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View full lesson: https://ed.ted.com/lessons/the-genes-you-don-t-get-from-your-parents-but-can-t-live-without-devin-shuman
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Animator’s website: https://www.luisacopetti.com and https://www.hype.cg
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Heredity is when certain traits are passed from the parents to the children. Traits are characteristics such as eye colour, height, and athletic ability. Heredity is passed through genes in the DNA molecule. In biology, the study of heredity is called genetics.
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In this video from the diabetes and metabolism seminar, Professor Jerry Greenfield discusses the complex interplay of genetics and obesity. To find out more: https://www.garvan.org.au/research/diabetes-metabolism/clinical-diabetes-appetite-metabolism
Traits are characteristics or features that can be passed from one generation to another.
Some examples include hair color, size, and skin color.
Long tail short tail long ears or short ears
Each of these factors can be passed genetically to another generation.
There are different forms of the same trait.
In this next video notice the different shapes of the noses. These would be examples of alleles because they are different forms of the same trait
Traits can also be dominant or recessive
Each individual has two alleles for each gene, one coming from each female and the other from the male. With dominant traits, an individual carries either two dominant genes or one dominant and one recessive gene. A dominant gene can be expressed even if only one copy of the gene is present.
A recessive trait will only be expressed if an individual has two recessive alleles.
In this example purple color is dominant over white color
In summary, a trait is a feature that can be passed from one generation to the next
Learn how to extract DNA from a banana
http://www.moomoomathblog.com/2020/11/dna-from-banana-fun-lab-or-science.html
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Please watch: “Study Skills Teacher’s Secret Guide to your Best Grades”
Robert Plomin, is a psychologist, geneticist and an author.
Separating the influence of nature and nurture is something everyone considers. Robert is the 71st most cited psychologist of the 20th century and has run the largest and most clinically detailed twin and adoption studies in history to finally provide definitive answers to these fundamental questions.
Expect to learn how much of who we are can be attributed to our environment and how much was predisposed by our genetics, why parenting doesn’t make a difference, why the choice of school your child goes to only impacts 1% of their outcomes, whether penis size is heritable, if there is a gay gene or not and much more…
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00:00 Intro
01:42 What are Behavioural Genetics?
04:22 Nature & Nurture
17:52 How Genetics Are Studied
22:39 Biggest Ever Twin Study
27:39 Do Genes Influence Behaviour & Health?
36:32 Heritability of Different Traits
50:09 Seeking Happiness
55:57 Heritability of Sexual Preference
58:41 Do Children Behave Like Their Parents?
1:03:22 Non-Genetic Impacts on Behaviour
1:09:54 Educating Children on Genetics
1:23:38 DNA Dating
1:29:51 Increasing Equality of Opportunity
1:35:08 Living With Acceptance of Genetics
1:39:49 Where to Find Robert
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Genes are contain the instructions for characteristics. Different versions of genes are known as alleles and we inherit specific alleles from our parents. It’s the combination of alleles (one from each parent for every gene) that determines who we are.
We also look here at the genetic disease cystic fibrosis as an example of a inherited monohybrid trait.
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OTHER GENETICS VIDEOS:
Genetic Diagrams Explained: https://youtu.be/tZVp2AAO1sg
Genetic Modification Explained: https://youtu.be/qausqhqklH0 Video Rating: / 5
Can obesity be genetic? What causes obesity? Top endocrinologist Dr Barbara McGowan explains the complex causes of obesity.
Learn more about obesity and/or make an appointment with Dr McGowan here: https://www.topdoctors.co.uk/doctor/barbara-mcgowan
Is obesity in our genes? Dr. Elizabeth Speliotes, M.D., Ph.D., M.P.H., explains the role genes play in body size and shape.
By analyzing genetic samples of 300,000 individuals across the globe, researchers have found more than 100 locations across the genome linked with obesity traits. These genetic clues may one day help doctors tailor the advice they give to patients about obesity complications. The study was published in the 12 Feb. issue of Nature. Video Rating: / 5
