Dna & DNA Replication
What does DNA stand for?
Deoxyribonucleic Acid
An RNA nucleotide consists of a ______ and ________.
Phosphate & sugar
Are Mutations considered negative?
They can be negative positive or neutral.
What are the possible blood types?
A,B,AB.O
Dominant alleles are represented by a
capital letter
How many pairs of chromosomes do we have?
23
The type of RNA that carries the instructions to build an AA
mRNA
What is a mutation
a change in the DNA sequence of an organism
What causes Down Syndrome
An extra chromosome
What are different forms of a gene called?
Alleles
How do cells make accurate copies of DNA?
Cell replication
Transcription occurs in the
nucleus
What is a "codon"?
Which disease or disorder causes people to have abnormal hemoglobin?
Sickle Cell
Evolution is the result of a process called.
Natual selection
Which bases are purines? Pyrimidines?
adenine and guanine as purines, thymine, uracil, and cytosine are pyrimidines.
The process that involves rRNA, tRNA, and mRNA
translation
Mutations can cause a cell to produce an incorrect protein during
protein synthesis
Mutations in DNA and changes in structure or number of chromosomes.
The process of passing down favorable traits to one's offspring is called
inheritance
Which of the following replication proteins is used to unwind the DNA double helix?
What are the types of gene mutation
substitution,deletion,insertion
Insertion, substitution, and deletion mutations occur during
DNA replication
Identify the gene mutation:
Normal
AGC-TTA-CGT-AAA
Mutant
ACT-TAC-GTA-AA
deletion
Define natural selection
Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success.