DNA Flashcards
What structure is DNA
Double helix
How many chromosomes in a human body
46
What does DNA stand for
Deoxyribonucleic Acid
What are nucleotides made of
Deoxyribose sugar, phosphate, and one base
What are the bases in DNA
Adenine, thymine, guanine, and cytosine
What are chromosomes
DNA wrapped in proteins
What are reproductive cells called (humans)
Gametes
What are pairs of chromosomes called
Homologous chromosomes
How many chromosomes do we get from each parent
23
What is the first step in DNA replication
The DNA starts to unzip
What is the second step of DNA replication
Copying of the DNA molecules begin with complementary bases attaching to both strands of the DNA
What is the order in which the amino acids begin then is followed by what they make
Amino acids, proteins, cells, tissues, organs, organisms
What are codons
Codons are a 3 letter code made by DNA base pairs
What do codons make
Codons make amino acids
What is a gene
A gene is a pack of DNA passed down through a generation