question | response |
What materials make up a DNA molecule? | sugar, phosphate, base |
T/F When making a protein, copies of DNA are taken to the cytoplasm from the nucleus. | true |
T/F When making proteins, a copy of DNA is fed through the mitochondria. | false - it's fed throught the ribosome. |
Most genetic disorders are due to a dominant or recessive gene? | recessive |
Incomplete dominance is when | each allele has a degree of influence |
How many bases combine to make an amino acid? | three |
In a DNA ladder, the sides of the ladder are composed of | alternating sugars and phosphates |
In a DNA ladder, the rungs of the ladder are composed of | nucleotide bases |
T/F Several genes can affect one trait. | true |
T/F The environment can affect a person's traits. | true |
Nucleotides combine to make | genes |
The amount of adenine equals the amount of | thymine |
The amount of cytosine equals the amount of | guanine |
What are three types of mutations? | deletion, insertion, substitution |
What is a mutagen? | anything that can cause a mutation |
A gene consists of a string of | bases |
We have certain _________ that repair mutations that occur in DNA molecules | enzymes |
If a mutation occurs in the DNA of _____cells, it can be passed from one generation to the next | sex |