Chemistry (atoms)
What is the charge of a proton?
Positive
A positive charge
What is the side of the periodic table where you would find non-metals?
The right side
What is the shape of the DNA molecule?
Double helix shape
What are the alternative forms of genes?
Alleles
Adaptations
What is the element with 10 electrons?
Helium
What is the name given to columns on the periodic table?
Groups
What is the base pair for Adenine?
Thymine
In a genotype, what type of letter shows a dominant allele?
A capital
What is the first principal or natural selection?
Variation
How many neutrons does fluorine have?
10 neutrons
What is the name given to Group 1 on the Periodic table?
Alkali metals
A nucleotide is made up of a nitrogenous base, a pentose sugar and what?
Phosphate
What is the combination of a dominant and a recessive allele?
Heterozygous
Why is the mouse population changing over time?
The hawks eat more light mice than dark mice because they can see the light mice more easily
What element has the electron arrangement 2,8,3?
Aluminium
What is the most reactive group?
What types of bond holds the complementary bases together?
Hydrogen bonds
What is the percentage of offspring with the recessive phenotype from two heterozygous parents?
25%
Index fossils help scientists estimate the age of a rock because index fossil species only existed for a relatively short time.
What happened to the species that are now used as index fossils?
They became extinct
What is the charge of a neutron?
There is no charge.
True or False:
Liquid iron and solid iron are allotropes.
False
They are not the same type of matter.
What is the full name of the sugar in DNA?
Deoxyribose
What is an enzyme that cuts DNA at a specific point?
A restriction enzyme
What is predation?
An ecological relationship in which one species, the predator, feeds on and often kills another organism, the prey.