LS1
DNA/Double helix
Long DNA molecules are made of many smaller subunits know as ________
Nucleotides
Each section of a DNA molecule that codes for a unique protein is called a?
Gene
Three nucleotides in a row is called?
Codons
When amino acids are bonded together in a growing chain the process is called?
Protein synthesis
________ __________ means that if one part of the system is removed or doesn't work the entire system will not function
irreducible complexity
The process of growth and reproduction is called the?
Cell cycle
Cells spend most of their lives in what phase?
Interphase
Scientists call the DNA-copying process?
Replication
After a cell is done copying its organelles and DNA, it is ready for the next phase of the cell cycle called?
Mitosis
In _______ the membrane around the nucleus disappears and the chromatin of each chromosome begins to coil up.
Prophase
In ________ the chromosomes are lined up at the center of the cell.
Metaphase
During ________ sister chromatid pairs divide into separate chromosomes.
Anaphase
During _________ the new chromosomes reach opposite ends of the cell and begin to uncoil.
Telophase
________ is the final stage of the cell cycle.
Cytokinesis
This type of reproduction does not involve gametes.
Asexual reproduction
This type of reproduction does involve gametes.
Sexual reproduction
Each chromosome in a diploid cell haas a matching partner with the same genes on it. These matching pairs of chromosomes are called?
Homologous
_________ consists of two cell divisions instead of one.
Meiosis
The joining of gametes are called?
Fertilization
The diploid cell that results from fertilization is called?
Zygote
RNA stands for?
Ribonucleic acid
One part of the ladder is called Sugar and the second part is called ______
Phosphate
The twisted ladder was first suggested by who?
James D. Watson/Francis H. Crick
_______ is found in the nucleus of a eukaryotic cell.
DNA