Genetics
Gregor Mendel was referred to as the what?
The father of Genetics
How many pairs of chromosomes does a person have?
23 pairs
True or False:
A punnett square is a graph that may determine the attitude of the offspring.
False; a punnett square is a chart. Also false because acquired characteristics may not be determined by punnett squares.
Fill in the blank:
The genes that determine what you look like come from your __________.
Parents
True or false:
Alleles are referred to as dominant and recessive.
True
What plants did Mendel work with?
Pea plants
Fill in the blank:
DNA is found in the _______ of the cell.
Nucleus
True or False.
Children get half a set of chromosomes from the father and half a set of chromosomes from the mother to make a full set chromosomes.True
What are inherited traits?
Characteristics controlled by a gene made up of DNA.
What is a dominant allele?
A dominant allele is an allele whose characteristics will be displayed in the organism when present
Fill in the blank:
The way you look when you are born is __________ by genes.
Controlled
How many chromosomes does a horse have?
64 chromosomes
Fill in the blank:
If organisms inherit two of the same alleles, they are _______.
Homozygous
What are acquired traits?
What is a recessive allele?
A recessive allele is hidden when the dominant allele is present.
What is a trait?
A trait is a set of characteristics that are passed down from parents to offspring.
Fill in the blanks:
Every chromosome is made up of _________. They carry the instructions for _________.
Fill in the blank:
If organisms inherit two different alleles, they are ______ for that gene.
heterozygous
Give 2 examples of inherited traits.
Answers may vary:
curly hair, freckles, tall/short, attached earlobes, allergies...
What is a punnett square?
The Punnett square is a diagram that is used to predict an outcome of a particular cross or breeding experiment.
What is heredity?
Heredity is the passing on of physical or mental characteristics genetically from one generation to another.
What is an allele?
Alleles are the different forms of a gene.
Fill in the blank:
We call the two alleles that an organism carries for each gene its ________.
genotype
Give 2 examples of acquired traits.
Language spoken, dyed hair, attitude...
Fill in the blank:
Recessive alleles are represented by a _______ letter and dominant alleles are represented by a _____ letter.
lower-case, capital