Spin the Genetic Wheel!!. Genetics What is genetics? The study of _______ (how traits are passed from parents to offspring)

Spin the Genetic Wheel!!

Genetics

What is genetics?

The study of _______ (how traits are passed from parents to offspring)

What is genetics?

Genetics

The study of heredity (how traits are passed from parents to offspring)

Heredity

How an organism passes ____ from one generation to the next.

Heredity

How an organism passes traits from one generation to the next.

Trait

A __________

or quality

of an organism

Trait

A characteristic

or quality

of an organism

Traits that are advantageous are ____ likely to get passed on

Traits that are advantageous are more likely to get passed on

Variability

The differences

between ________

in a given population

Variability

The differences

between organisms

in a given population

Adaptation

A structure or behavior that allow an organism to survive in its environment.

http://animal.discovery.com/tv-shows/animal-planet-presents/videos/whats-to-love-sidewinder-snake.htm





Who is Gregor Mendel?


• An Augustinian monk who taught physics to high school students.


• An Augustinian monk who taught physics to high school students.

• As a young man worked as a gardener and continued to work with plants in his life as a teacher and as a monk.


Mendel became known as the father of Genetics for his work.



In the 1860s, Mendel studied variation using the ____ of pea plants.



In the 1860s, Mendel studied variation using the traits of pea plants.

Who is Gregor Mendel

Plants


Plants

a. A flower is a structure that contains a plant’s reproductive organs.


Plantsa. A flower is a structure that contains a plant’s reproductive organs.

1. The ______ is the male organ

that produces pollen (sperm).


Plantsa. A flower is a structure that contains a plant’s reproductive organs.

1. The stamen is the male organ

that produces pollen (sperm).


2. The ___ is the female organ that contains egg cells.


2. The pistil is the female organ that contains egg cells.


2. The pistil is the female organ that contains egg cells.b. During ______________, pollen is transferred to the top of the pistil (stigma) within the same plant. This leads to fertilization (union of sperm and egg)


2. The pistil is the female organ that contains egg cells.b. During self-pollination, pollen is transferred to the top of the pistil (stigma) within the same plant. This leads to fertilization (union of sperm and egg)


b. During _____________, pollen is transferred to the stigma of another plant (fertilization)


b. During cross-pollination, pollen is transferred to the stigma of another plant (fertilization)


Vocabulary Review: A zygote is a fertilized egg.


Mendel found patterns in the way traits were _______.


Mendel found patterns in the way traits were inherited.



a. organisms contain two ____ per trait

(one from each parent)



a. organisms contain two genes per trait

(one from each parent)


b. Genes are units of ______; determines traits in offspring.


b. Genes are units of heredity; determines traits in offspring.



c. ________ genes will mask (hide) other genes; “stronger”



c. Dominant genes will mask (hide) other genes; “stronger”




d. a _______ gene is hidden by a dominant gene; “weaker”




d. a recessive gene is hidden by a dominant gene; “weaker”


e. _______ refers to an organism with a pair of the ____ genes for a given

trait (either dominant or recessive). This is known as being __________.


e. Purebred refers to an organism with a pair of the ____ genes for a given trait (either dominant or recessive). This is

known as being __________.


e. Purebred refers to an organism with a pair of the same genes for a given trait (either dominant or recessive. This is

known as being __________.


e. Purebred refers to an organism with a pair of the same genes for a given trait (either dominant or recessive). This is

known as being homozygous.


e. Purebred refers to an organism with a pair of the same genes for a given trait (either dominant or recessive. This is


f. _____ refers to an organism with two ______ genes for a trait (one

dominant and one recessive). This is known as being ___________.




f. Hybrid refers to an organism with two ______ genes for a trait (one

dominant and one recessive. This is known as being ___________.




f. Hybrid refers to an organism with two different genes for a trait (one

dominant and one recessive). This is known as being ___________.




f. Hybrid refers to an organism with two different genes for a trait (one

dominant and one recessive). This is known as being heterozygous.


g. In genetics, each trait is noted by a single letter (Ex. “T” for tall plants)

II. Who is Gregor Mendel?

g. In genetics, each gene is noted by a single letter (Ex. “T” for height)

h. Capital letters are used to show which is the dominant allele (copy of the gene)

Ex. T = the tall allele (dominant)

t = the short allele (recessive)


g. In genetics, each gene is noted by a single letter (i.e. “T” for height)

h. Capital letters are used to show which is the dominant allele (copy of the gene)

1. i.e. T = the tall allele (dominant)

t = the short allele (recessive)

Are Genes Always Dominant and Recessive?


No, in some gene pairs, the genes are neither dominant nor recessive. During ________ _________, neither gene hides the other (each gene blends with the other).


No, in some gene pairs, the genes are neither dominant nor recessive. During incomplete dominance, neither gene hides the other (each gene blends with the other).

What are Phenotype and Genotype?

________ – the visible characteristics (traits).


Phenotype – the visible characteristics (traits).


________ - the _____ that the organism possesses. Ex: A hybrid (heterozygous) genotype will have a phenotype that shows the trait of the dominant gene.


________ - the genes that the organism possesses Ex: A hybrid (heterozygous) genotype will have a phenotype that shows the trait of the dominant gene.


Genotype - the genes that the organism possesses e.g. a hybrid (heterozygous) genotype will have a phenotype that shows the trait of the dominant gene.

Spin the Genetic Wheel!!. Genetics What is genetics? The study of _______ (how traits are passed from parents to offspring)

Documents

egg slide

organism slide

gregor mendel plants

plant fertilization

traits of pea plants

plants reproductive

female organ

egg cells