What is a section of DNA called?
Gene
True or False: In his genetics experiments with pea plants, Gregor Mendel determined traits were passed down in a random pattern.
False: It is in a predictable pattern
Which trait will always express itself regardless of what other trait it is paired with?
Dominant
Which of the following are examples of a heterozygous genotype?
Gg Ff Tt
The combination of the two alleles makes up the
genotype
What are the different forms of a gene called?
Alleles
What is the structure made of tightly coiled DNA?
Chromosome
What is the observable characteristics in an individual resulting from the expression of genes?
phenotype
What is the possibility that the offspring will be yellow?
50%
Which of the following are examples of genotypes in which the dominant gene will be evident in the phenotype?
Ff HH Oo Uu
What is the passing down of traits from one generation to next generation?
Heredity
How many chromosomes do humans have?
46 or 23 pairs
How many chromosomes do human sperm and egg cells (gametes) have?
23
Which of the following are examples of homozygous dominant genotypes?
AA EE RR
True or False: Chromosomes contain genes
True
What is an example of genetic material?
DNA, genes, or chromosomes
Where is genetic material located in a plant or animal cell?
Nucleus
If R stands for red & and r stands for white, what is the possibility offsping will be white?
25%