Structure of DNA
A gene is a section of DNA that codes for a unique __________
Protein
Uricil
Humans have this many chromosomes
46
Cells spend most of their lives in this phase
Interphase
Gametes combine to form this
Zygote
What base forms a base pair with cytosine?
Guanine
This is the RNA produced during transcription
Messenger RNA (mRNA)
This process results in offspring that look identical to the parent
The phase where sister chromatids divide into separate chromosomes
Anaphase
A cell that contains 2 complete sets of chromosomes
Diploid
What base forms a base pair with Thymine
Adenine
The RNA responsible for carrying amino acids to the ribosomes
Transfer RNA (tRNA)
The structure that contains a cell's DNA
Chromosome
In this phase the nuclear membrane disappears and the chromatin begins to coil up
Prophase
A starfish would use this type of reproduction to regrow a missing arm
Asexual reproduction (regeneration)
Base, phosphate, sugar
Process of turning DNA intro RNA is called
Transcription
The first step in DNA replication is
Enzyme unzips the DNA strand into two halves
Stages of the cell cycle in order
Interphase, Prophase, Metaphase, Anaphase, Telophase, Cytokinesis
A sperm call and an egg cell are called
Gametes
What determines the protein that is built from a particular gene
The nucleotides present in the gene and the order those nucleotides are in
Codons code for about 20 different ____________ that are used to build
Amino acids
Removing one part of a system causing the whole system to stop functioning is called
irreducible complexity
The phase where new chromosomes reach opposite ends of the cell and uncoil
Telophase
Matching pairs of chromosomes in a diploid cell are called
Homologous chromosomes