Genetics
In _______ reproduction, only one parent cell or organism produces offspring.
asexual
A _______ allele is expressed even if paired with a recessive allele.
dominant
A ________ helps researchers predict each possible combination of alleles that may occur in the offspring of a cross.
Punnett square
The probability of receiving an allele from a parent is a lot like?
a. flipping a coin
b. physics
c. making a 100 on a test
A
fertilization
Organisms reproduce sexually by making _____, or specialized reproductive cells.
gametes
A ______ allele is expressed only if the organism has two recessive alleles.
recessive
A dominant allele is expressed with a _____ letter.
capital
Chromosomes come in.....
pairs
If somebody has two X chromosomes, they are a
female
One male gamete and one female gamete join together to create a new single cell in a process called _______.
fertilization
When two alleles are both expressed, the inheritance is called ________.
codominant
A recessive gene is expressed with a ______ letter.
lowercase
The offspring of two parents from different purebred strains will be a
hybrid
If someone has one X and one Y chromosome, they are a
male
A _____ trait is produced by a variation of a gene that is ALWAYS expressed.
dominant
The chance that a certain event will happen is called ________.
probability
______ traits are those that genes control.
Genetic
The genetic material of all living things, which contains a code that can be copied and directs cell activities is called....
DNA
Punnett square practice
see board
A(n) ______ is one form of the gene for a trait.
allele
How many chromosomes do humans have?
46
Who is the father of genetics?
Gregor Mendel
cell cycle
Punnett square practice
see board