Column 1
Who discovered DNA? (2 people)
Francis Crick and James Watson
Genetics is the study of ____________?
Heredity
What is the definition of homozygous?
A genotype that refers to two of the same genes.
What does cytosine pair with?
Guanine
What can genetic engineering help with?
It can change taste, make crops weather resistant, and produce positive traits in crops
What is GMO and non GMO?
Genetically modified organism and non genetically modified organism
What does Thymine pair with?
Adenine
What do Punnett Squares predict?
A ____________ is a chart that traces the history or a trait within a particular family
Pedigree
Pick the pairs that are heterozygous...
Aa
BB
Cc
rr
zz
Where is DNA found?
In the nucleus of every cell
What are the base pairs that make DNA?
Adenine and Thymine, Cytosine and Guanine
What is the shape of DNA called?
Double helix
What do we call Mendel's factors today?
Genes
______________ are thread like structures in the nucleus that contain directions for cell activities?
Chromosomes
What are genetic engineers?
Genetic engineers are scientists who change the genetic sequence to make a particular trait.
What is DNA?
A molecule that contains the genetic code of an organism
What is a genotype and phenotype?
Genotype- all the genes that are inherited by an organism.
Phenotype- the characteristics that show up in an organism.
What is a geneticist?
A scientist who studies heredity
How many bases are the human genome made up of?
3 billion
What does hybrid mean?
An organism produced by the crossing of parents that have two different forms of the same trait.
How many pairs of chromosomes are in almost all human cells?
23 pairs
Fill in the blank: In 1866, __________________ discovered nuclein, that later became known as nuclein acid
Gregor Mendel
Fill in the blank: Down syndrome occurs when a child inherits an extra copy of one chromosome in pair _______.
21
What does DNA stand for?
Deoxyribonucleic Acid