DNA & RNA Basics
A mutation that involves one or a few nucleotides is called this.
Point mutation
Genes contain instructions for assembling these molecules.
Proteins
The principle of dominance states that some alleles are dominant and others are this.
Recessive
All members of one species living in one area are called this.
Population
All interconnected feeding relationships in an ecosystem make up a food this.
Web
An interaction in which one organism captures and feeds on another organism is called this.
Predation
DNA is copied during this process.
Replication
This is produced during transcription.
RNA molecules
When you flip a coin, the probability that it will come up tails is this.
1/2
An organism that cannot make its own food is called this.
Heterotroph
An animal that eats only plants is called this.
Herbivore
A symbiotic relationship in which both species benefit is called this.
Mutualism
During DNA replication, the DNA strand CTAGGT would produce this complementary strand.
GATCCA
This process uses information from mRNA to produce proteins.
Translation
In a cross between Bb and bb rabbits, the probability of white-furred offspring is this.
50%
Plants are classified as this because they make their own food.
Producers
Animals that eat both producers and consumers are called this.
Omnivores
Different species can share the same habitat if they occupy different this.
Niches
In eukaryotes, DNA is located here.
The nucleus
This type of RNA functions as the blueprint of the genetic code.
mRNA
In an Aa × Aa cross, the expected phenotypic ratio is this.
3:1
An organism that obtains nutrients by breaking down dead and decaying organisms is called this.
Decomposer
A snake that eats a frog that ate an insect that fed on a plant is this consumer level.
Third-level consumer
An organism’s niche describes how it uses the physical and biological conditions in which it does this.
Lives
Unlike DNA, RNA contains this nitrogen base.
Uracil
This sugar is found in RNA.
Ribose
A black chicken crossed with a white chicken produces offspring with both black and white feathers. This inheritance pattern is called this.
Codominance
Species are grouped in populations, which make up this larger ecological level.
Communities
The original source of almost all energy in most ecosystems is this.
Sunlight
Competition between species is reduced when species use different resources or occupy different roles called these.
Niches