WorksheetsInheritance and Genes
Total questions: 15
Worksheet time: 15mins
What term describes a trait that is influenced by multiple genes?
Genotype
Heterozygous
Polygenic
Homozygous
What term can be used to describe a person's hair color or a dog's coat pattern?
Monogenic
Polygenic
Phenotype
Genotype
Which of the following scenarios represents a situation where a child inherits one gene for tallness and one gene for shortness?
tT
tt
Tt
TT
(a) means that passing on of genes from parents to their offspring.
Where are genes found?
In the mitochondria
In our bone marrow
Chromosomes, in the nucleus of a cell
In our brains
Where do offspring get their genes?
Half from their mom, half from their dad
From their mom
From their dad
From their brains
(a) is the part of a chromosome that determines one particular characteristic of an organism.
What causes variation?
Your environment
Your genes and your environment
Your genes
Your names
What is selective breeding?
None of the below
When you breed two animals together because of their desirable traits to create an offspring with many desirable traits, u do this for many generations
When you breed together two different animals to create a hybrid animal and then sell it for lots of money.
All of the above
(a) is the chemical from which chromosomes are made.
What are small stretches of DNA that code for traits
Nucleus
Chromosomes
Gene
Centromeres
What is a gene?
A bundle (like a hot dog bun) that the DNA is packed into
something inside the nucleus
a piece of DNA
all of your DNA
What is the basic unit of heredity that is passed from parents to offspring?
Gene
Chromosome
DNA
Allele
Which of the following best describes the concept of dominant and recessive alleles?
Dominant alleles mask the effect of recessive alleles
Recessive alleles mask the effect of dominant alleles
Both alleles are expressed equally
Alleles do not affect each other
In a genetic experiment, a pea plant with a genotype of Tt is crossed with another Tt plant. What is the probability of obtaining a tall plant (T) in the offspring?
25%
50%
75%
100%
