Genetics
What is genetics?
The study of heredity
What is heredity
The passage of genetics instructions(traits) from parent to offspring
Sexual reproduction produces off spring that are genetically ...... to the parents
Similar
Some genes can be hidden or covered up by another These are considered
Recessive
How are traits passed from parent to offspring
through genes during reproduction
Where are genes located?
In the chromosomes
Who first studied heredity and the passage of traits from one generation to the next?
Gregor Mendel
Asexual reproduction produces offspring that are genetically ....... to the parents
Identical
what are punnet squares used for?
to determine the outcome of genetic crossing
name two traits that could be inherited from you parents.
Examples hair color eye color height skin color
What are the threadlike structures of DNA that carry genes called?
Chromosomes
what type of organism did Gregor Mendel use to first study heredity
Pea plants
If you are studying a population of genetically identical individuals, you can conclude that these individuals reproduce how?
Asexually
A black Chicken(BB) is crossed with a black Chicken(BB). what percentage of offspring will be black
100%
Why dose punnet square use capital and lowercase letters
Capital=Dominant trait. Lowercase= Recessive trait
Inherited traits that children get from their parent come from-
Genes
The physical trait observed in an offspring is know as it's
Phenotype
For some traits, only one copy of a particular gene is needed to show a given trait, these genes are refereed as-
Dominant
Having Dimples is dominant(D). Not having dimples is recessive(d). Both parents are heterozygous for the dominant trait. What percentage of the children will NOT have dimples
25%
how many parents are involved in asexual reproduction
One
What do we call the genetic makeup of the individual, represented by the set of letters?
Your mom's genes are dominant 5’0 and your dad's are recessive 5' 9, would you be higher than 5 feet or between
Genotype
You would be 5' 0 or around 5' 0
how many chromosomes do humans have
how much chromosomes are given from each parent
46
23 from each parent
The sorting of chromosomes during sexual reproduction, determines-
What is reproduction?
Which traits are passed on to the offspring
The action or process of making a copy of something
Long ears are dominant (E) in rabbits. If one parent is homologous dominate for the long ear trait and the other homologous reccessive (e), what is the only possible genotype of the offspring?
Short arms are dominant (S) in humans.If one parent is homozygous dominant for the short arms trait and the other is homozygous recessive (s) what is the only possible genotype of the offspring?
Ee
Ss
Two dark brown rabbits have four offspring.Three of the offspring are dark and one is white,What does this tell you about the parents' genes for fur color?
Who discovered a picture of a DNA structure
Dark brown is dominant and white fur is recessive both parents are heterozygous
Rosalind Franklin