Cell size and scale

Good link to give you an idea what size things are!   5th years now studying bacteria..hope this helps!

http://learn.genetics.utah.edu/content/cells/scale/

Evolution Video

Here is a link to the video we watched in class today.

https://www.youtube.com/watch?v=hOfRN0KihOU

12 apps for Christmas

This is for you to look at and it might help you with your learning.  I have registered and put the app on my phone so will be able to comment later but it has been highly recommended.

If you are interested follow thw link below.

http://the12appsofchristmas.zohosites.com/student-page.html


Keep me posted

DNA PROFILING 6th Years

Below is a link to a lovely website with lots of material and video clips on DNA Profiling.

http://www.pbs.org/wgbh/nova/sheppard/lab01.html

SKIN COLOUR GENETICS   further to our discussions in class...

There are at least three ways people can end up with different skin color. One way is if people make less pigment. Less pigment = lighter skin.

Another way is when people have fewer melanocytes. Fewer melanocytes mean less pigment overall and so lighter skin.

The third way has to do with the kind of pigment someone makes. There are two types of melanin. Eumelanin is black or brown pigment and pheomelanin is red or yellow pigment.

People who make lots of pheomelanin tend to have lighter skin, often because of freckling. 

Melanocytes are usually spread pretty evenly in the skin. So when freckles form, some spots of the skin have lots of melanocytes (freckles) and other spots have few or none. Where there are no melanocytes, the skin is very fair.

Skin Color Genes

Scientists have figured out that several genes are involved in skin color. One of these genes is the melanocortin 1 receptor (MC1R).

When MC1R is working well, it has melanocytes convert pheomelanin into eumelanin. If it's not working well, then pheomelanin builds up.

Most people with red hair and/or very fair skin have versions of the MC1R gene that don't work well. This means they end up with lots of pheomelanin, which leads to lighter skin. 

November Test Topics for 6th year Biology 2017

Scientific Method

Characteristics of Life

Food/Biomolecules

Cell Structure and Diversity

Enzymes

Diffusion and Osmosis

Cell Division

The Circulatory System

Viruses

Fungi

Monera

Protista

Photosynthesis

Lymphatic System

Excretory System

Digestive System

Nervous System

Sensory System

Endocrine System

DNA

Interesting TED Talk on DNA for TY as we were talking about this in class.

For those of you in 6th Year who wish to expand your mind then have a look too..


http://www.ted.com/talks/jennifer_doudna_we_can_now_edit_our_dna_but_let_s_do_it_wisely?utm_source=newsletter_daily&utm_campaign=daily&utm_medium=email&utm_content=image__2015-10-20

Watson and Crick the famous scientists that uncovered the structure of DNA

DNA Replication and Facts about DNA

Click on the link below to a super website which gives you lots of information on what we are covering in class at the moment in 6th year. These animations might bring it alive for you.


http://www.yourgenome.org/topic/in-the-cell

Statistics

This has absolutely nothing to do with Leaving Certificate Biology but it is a really cool TED talk that I think everyone should watch....enjoy!!


https://www.ted.com/talks/hans_and_ola_rosling_how_not_to_be_ignorant_about_the

_world

Build DNA/ DNA Ted Talk

Below is a link to a build DNA game..

http://www.mrcbiology.com/Build%20a%20DNA%20Molecule.swf


Also is a link to a talk on DNA by Watson himself!!!


https://www.ted.com/talks/james_watson_on_how_he_discovered_dna

http://genetics.thetech.org/online-exhibits/zooming-dna  This is another link to zooming in on DNA

The production of proteins from DNA

http://www.yourgenome.org/video/from-dna-to-protein

This video link provides a very clear explanation of how we make proteins in our cells....for 6th year biology....

DNA - DEOXYRIBONUCLEIC ACID

Mind Maps

Mind Maps

I have introduced these to my first years.  Have a look at this little video to help you to learn how to mind map.

http://www.tonybuzan.com/about/mind-mapping/

Good Luck.!

IVF with 3 Parents

http://www.bbc.com/news/health-31069173

Link to a BBC News Report on IVF.  Topical news report talking about IVF for 6th Year Students.

Blood Groups

Further to our lesson today on Blood Composition and Blood Groups here is a nice video clip which explains it well.

https://www.youtube.com/watch?v=KXTF7WehgM8#t=35

Computer Games

Below is a link to computer games that you can play that might help you with your understanding.

http://biomanbio.com/GamesandLabs/Genegames/genetics.html

Good Luck

 Picture of Bacteria ( Monera Kingdom)

ENZYMES

How enzymes work!!

Nice video clip.


https://www.youtube.com/watch?v=r1ryDVgx0zw

DNA

Nice diagram of DNA Replication.

1. DNA Unwinds with the help of the enzyme Helicase.

2. Free Nucleotides come in and pair with the exposed nucleotides with the help of the enzyme DNA Polymerase.

3. Note the nucleotides join with complimentary base pairs (shown above).

4.  The newly formed double strand coils up again into a double helix.