Genetics
Genetics 2
Factors Affecting Growth
Punnett Squares
Punnett Squares 2
100
In the 1800s, a European monk named Gregor Mendel studied what?
Heredity
100
A recessive trait is shown as:
a. Lower Case (r)
b. Capitol (R)
a. Lower Case (r)
100
As with all living things, plant growth is controlled by response to stimuli. For plants, these responses are controlled by _______, chemicals that affect growth and development.
Hormones
100
RR or rr means:
a. Hybrid (Heterogeneous)
b. Purebred (Homogeneous)
b. Purebred (Homogeneous)
100
B= brown eyes b= blue eyes
What is the percent chance of the child having blue eyes?
50%
200
The offspring are called the F1, which means what?
First filial generation.
200
A number that describes how likely it is that an event will occur. The laws of probability predict what is likely to happen and what is not.
Probability
200
Touch, gravity, and light are three stimuli that trigger what in plants?
Tropisms
200
Rr means:
a. Hybrid (Heterogeneous)
b. Purebred (Homogeneous)
a. Hybrid (Heterogeneous)
200
B= brown eyes b= blue eyes
What is the percent chance of the child having blue eyes?
25%
300
He called the information that carried the traits, ______, because they determined what was expressed.
Factors
300
To determine the probability of inheriting allele, geneticists use a tool called a what?
Punnett square
300
A plant's response to seasonal changes in the length of night and day.
Photoperiodism
300
Which would go on the top of a Punnett square?
Yy or yy
yy
This is because if there is a Hybrid and a purebred the purebred always goes on top.
300
B= brown eyes b= blue eyes
What is the percent chance of the child having blue eyes?
0%
400
Today the term factor has been replaced with gene or allele. Alleles are ______.
A different forms of genes
400
An organism’s ______ is the genetic makeup or combination of alleles.
Genotype
400
What is metamorphosis?
A major body change.
400
Which of the two are Heterogeneous?
Rr or rr
rr
400
If you used a punnett square for bb and bb, what would the chance of the child having blue eyes be?
100%
500
A dominant trait is shown as:
a. Capitol (R)
b. Lower Case (r)
a. Capitol (R)
500
The expression of an organism’s genes is called its ______, the organism’s physical appearance or visible traits. The height, the shape, the color, the size, the texture- whatever is being expressed is known as this.
Phenotype
500
After fertilization, the offspring of animals develop in different ways. The growing offspring, or ______, may develop outside or inside the mother’s body.
Embryo
500
how many sections is a punnet square split into?
4
500
If you used a punnett square for Bb and Bb, what would the chance of the child having brown eyes be?
75%