DNA
Genes
Chromosomes
Meiosis
Mitosis
100
DNA is shaped like a twisted ladder. This shape is called a ______.
Double Helix
100
the passing of traits from parent to offspring
Heredity
100
structure that holds the sister chromatids together; point where chromosomes attach to spindle fibers during mitosis
Centormere
100
How many chromosomes does the offspring have after meiosis?
23 chromosomes
100
How many chromosomes do the offspring have after mitosis?
46 chromosomes
200
A molecule of DNA that is wrapped tightly around structural proteins
Chromosome
200
distinguishing quality or characteristics of a person
Trait
200
chromosomes that have the similar size and same genes.
homologous chromosomes 
200
microtubules that guide the movement of chromosomes during cell division
spindle fibers
200
What type of cells are made during mitosis?
two body cells
300
A long molecule that stores the genetic code with instructions needed to produce proteins for an organism to develop and function.
Deoxyribonucleic acid 
300
each genes come in different forms called _____
Alleles
300
having two sets of chromosomes (2n)
Diploid
300
Unlike mitosis, meiosis includes this number of cell divisions.
What are two cell divisions?
300
During this stage of mitosis, chromosomes line up across the middle of the cell.
What is metaphase?
400
A segment of DNA located on a chromosome that is a set of directions for certain kinds of proteins
Gene 
400
When two different alleles are present, this allele determines the trait that is observed.
What is the dominant allele?
400
thread-like form of DNA in the nucleus of the cell interphase and cytokines
Chromatin
400
What type of cells are made during meiosis?
four gamete cells
400
If a parent cell has 16 chromosomes before mitosis, each daughter cell will contain this many chromosomes after mitosis.
What is 16 chromosomes?
500
What is a nucleotide made up of?
nitrogen base, phosphate group, and deoxyribose (a sugar molecule)
500
A change in a gene’s DNA sequence that may affect the protein it produces is called this.
What is a mutation?
500
the process where homologous chromosomes pair up and exchange genetic material to form new chromosomes
crossing over 
500
These two processes during meiosis create genetically different gametes by exchanging DNA and randomly separating homologous chromosome pairs.
Crossing-Over and independent Assortment
500
Mitosis is important for these three major processes in multicellular organisms.
What are growth, repair, and replacement of damaged or worn-out cells?