S3 - Biology Test Flashcards
What’s Missing:
Nucleus > Chromosomes > … > DNA
Genes
What’s missing?
… > Chromosomes > Genes > DNA
Nucleus
What’s missing?
Nucleus > … > Genes > DNA
Chromosomes
Nucleus > Chromosomes > Genes > …
DNA
State the order of each thing that occurs in a nucleus
Nucleus > Chromosomes > Genes > DNA
What are genes?
Genes are the unit of inheritance that determine you characteristics
State what a phenotype is
A phenotype is the term used to describe an organism’s physical appearance
State what a genotype is
The genes that an organism has
Different forms of the same gene are known as:
Alleles
What are chromosomes made up of?
Long strands of DNA
DNA is made up of…
Nucleotides
What are nucleotides made up of?
Phosphate , Deoxyribose Sugar & Base
What are the four different bases?
C G A T
(Cute Guys/Girls Are Thick)
What bases pair with one another?
C & G A & T
What are 3 uses for DNA?
Paternity suits , Immigration pursuits & Criminal Investigation
What does DNA do?
DNA carries genetic instructions for the development, functioning and growth for your body
What is cell division - Mitosis?
Cell division is when our cells divide to grow and/or repair our body
Why is cell division important?
Cell division is important because we need to make sure we have all the genes required to ensure no genetic information is lost
What is mitosis also known as in biology?
Maintaining the diploid chromosome complement
What is genetic engineering?
Genetic engineering allows us to grow artificial organs
What are stem cells?
Stem cells are special cells that are able to turn into any cell
What is a plasmid?
A small circular piece of DNA found in a bacterial cell.
What can a plasmid be used for?
Genetic Engineering
What are nucleotides?
The small units that make up DNA
