Vocab 1
Different forms of each gene
what is alleles
This tool is used to predict the probability of 2 parents having offspring with particular traits?
What is punnet square
What is the study of Heredity?
what is genetics
When an organism has 2 dominant or 2 recessive alleles it is called _______________.
Homozygous or Purebred.
To determine the probability of
What is the use of a punnet square
What molecule is found in your cells that makes you unique?
What is DNA
What is the shape of a molecule of DNA?
Double Helix
What are the building blocks of DNA
Nucleotide
He is the Father of Genetics.
He observed how traits in pea plants were passed from parent to offspring. He noticed trends in heredity.
Gregor Mendel
When a genotype has 2 different alleles it is called_______
Heterozygous or Hybrid
the allele that shows their affect on the phenotype when they are present in the genotype
What is dominant alleles
the genetic makeup of an organism
what is genotype
some diseases are caused by a lot of genes along with environmental impact
what is the reason why genetic tests can't predict diseases
Sickle Cell Anemia, Hemophilia, and Color blindness are types of __________.
Genetic Disorders
What is the physical trait of an organism.
Phenotypes
the allele that shows their effect on the phenotype only when two are present for each trait
what is recessive allele
the part or segment of a DNA molecule and chromosomes
what is a gene
the material that DNA information is made out of
They are 1 part of a nucleotide and their order and how many of them determine the types of proteins made and the proteins code for our traits.
Adenine
Cytosine
Guanine
Thymine
When an populations traits change due to natural selection. The speckled moth was a good example of Natural Selection which chooses the organisms with the beneficial traits that help it to survive. Because they have the beneficial trait, they reproduce and pass that trait to the next generation and then that trait is more prevalent. Sometimes this takes millions of year and sometimes it just takes a few years. This is called ________________ which is a change in a populations traits over time.
what is evolution
What are the 3 parts of a nucleotide?
Phosphate group, Deoxyribose Sugar, Nitrogen base
the study of traits passing from parents to offspring
what is genetics
Complete a Punnett Square.
Widows peak is a dominant trait.
Straight hairline is recessive.
What would the probability of having a baby with a straight hairline be if both parents are heterozygous?
25%
These are groups of 3 base pairs.
Codons
She was the first scientist to take an XRAY photo of a DNA molecule.
They were the first 3 scientists who made the first model of a DNA molecule
Rosalind Franklin
James Watson & Francis Crick
the process in which DNA changes and results in different alleles
what is mutation