Genetics-DNA

What is heredity?

(Genetic inheritance) the passing on of features from parents to offspring by means of genes.
What are genes?

Basic units of heredity.
Describe a gene?

A certain length of a chromosome, which codes for a particular protein.
What is gene expression?

The way in which a gene works to produce a protein.
Who discovered the fundamental principles of genetics?

Gregor Mendel (1860’s) by breeding garden peas.
What did Gregor Mendel do?

(In 1860’s) discovered the fundamental principles of genetics. By breeding gardening peas.
In eukaryotic cells, nucleic acids are either what?
- DNA - Deoxyribo Nucleic Acid
- RNA - Ribose Nucleic Acid
What are 4 points on DNA (Deoxyribo Nucleic Acid)?
- Hereditary material
- Carries and passes on genetic information
- Is a nucleic acid
- Made up of nucleotides
What are exons?

Parts of the DNA that code for a particular protein.
What is the part of the DNA that codes for a particular protein called?

An exon
What are the non-coding parts of the chromosome called?

Junk genes/ interons
What are interons?

Non-coding parts of the chromosome
What are 2 points on interons?
- Found within a gene and between genes.
- 97% of DNA is non coding DNA, only 3% of DNA is composed of genes.
Where are interons located?

Found within a gene and between genes.
What percentage of DNA is non-coding?

97%
What are genes made up of?

DNA alone (they’re located along the chromosome)
What are chromosomes made up of?

DNA and protein

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jacquelineglynn

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Genetics-DNA

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Updated

2023-05-17T10:03:21Z

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