DNA Flashcards
(24 cards)
What is an independent variable
Something you change
What is a dependent variable
Something you measure
What is a control variable
Something you keep the same
Is the independent variable categoric or continuous in a bar chart
Categoric
Is the independent variable categoric or continuous in a line graph
Continuous
How do you test the reliability of a result
Repeat it. If the answers are constant or similar it suggests the results and reliable
Which axis does the independent variable go
X axis
Which axis does the dependent variable go?
Y axis
What is an anomalous result
A result that is odd or different from the rest of the
Genetic information is passed from one _______ to the next
Generation
How many chromosomes does a human body cell contain
A total of 46
How do you get 46 chromosomes
23 from the mother 23 from the father
How much chromosomes do gametes have
23
What do chromosomes look like
Very long molecules of DNA tightly coiled together
Genes are short sections of ___ that code for a specific ______
DNA
Protein
What do proteins do?
They determine the characteristics of an organism
Which molecule carries the coded instructions for life
DNA
What does DNA stand for
Deoxyribonucleic acid
What is DNA made up of
Nucleotides which are composed of a sugar, phosphate and base.
Explain a model of DNA
A double helix with two strands held together with base pairs.
A and T, G and C
Who discovered dna
Francis crick, James Watson, Wilkin, Franklin
Name characteristics controlled by genes
Eye colour
Blood type
Ability to roll tongue
Name some characteristics controlled by environment
Scars
Language
Name some characteristics controlled by both genes and environment
Weight
Height
