sept. 29, 2020
TRANSCRIPT
Tuesday, Sept. 29, 2020
I can distinguish between the nature of
the dominant and recessive alleles and
describe how the alleles are found in
human cells.
(The relationship of DNA to alleles)
Big Ideas ➢ Genetics is the study of DNA and the transfer of information from one
generation to the next.➢ DNA is the material located in the nucleus of a cell that codes for all of
the information the body will need to develop➢ Transcription is the process by which DNA is turned into RNA for the
purposes of replicating the material➢ A mutation may occur when DNA is translated incorrectly or in
exposure to some kind of mutagen.
ESSENTIAL QUESTIONS
1. How are traits passed from parents to offspring?
2. How can we determine the possible traits from a genetic cross of two organisms?
AGENDA✔ Vocabulary Review✔ Notes - slides and video✔ Quick Quiz in CHAT✔ BN-Genes with Quiz✔ On Your Own - Extra Credit
Alleles•Variants (differences) in a gene
•Occurs on a fixed spot on a chromosome
•In humans an allele might indicate blood type, colorblindness, or many other traits.
Genetics
What does the allele indicate in this pair of
homologous chromosome?
Genetics
•Chromosomes are found in the nucleus of a cell and carry genes.
•Genes are segments of DNA on a chromosome and are responsible for inherited traits.
Deoxyribonucleic Acid - is the molecule that is present in all living cells and contains the information that determines traits that a living things inherit
DNA - “The Blueprint of Life” - found in the nucleus of a cell on the chromosomes.
DNA, Genes, Traits, and Alleles
Nucleotide - consists of a sugar, a phosphate and a base. The sugar has 5 carbons.
All nucleotides are the same except for the base
DNA is made of subunits called Nucleotides
- Each nucleotide has a different shape- Each nucleotide base pairs up with
another
Adenine pairs with Thymine
Cytosine pairs with Guanine
Gene - Section of DNA that controls traits such as eye color, skin color, fur type and can influence personality and behaviors .
Follow along Quiz. You will need two pages open side by side.
https://docs.google.com/forms/d/e/1FAIpQLScaHlzE8vfRNILBsx2shsr1157Of_fKOwZzdi6ATeaLdlsGeA/viewform?usp=sf_link
On Your Own:
Handout - DNA Coloring