WorksheetsChap 7 Lesson 1 review (open book and note)
Total questions: 18
Worksheet time: 9mins
What is inheritance?
The passing of traits from one generation to the next
The process of cell division and mitosis
The unique combination of genes on each chromosome
The interaction of an organism's genes and its environment
How are traits passed from generation to generation?
Through asexual reproduction
Through sexual reproduction
Through acquired traits
Through mutations
What is DNA?
A molecule inside a cell's nucleus
A structure made of long chains of DNA
A section of DNA that has genetic information for one trait
A unique combination of genes on each chromosome
What are genes?
Distinct segments of DNA
Sections of DNA that have genetic information for one trait
Long chains of DNA coiled with proteins
Individual chromosomes in human egg cells and sperm cells
How are chromosomes formed?
Through asexual reproduction
Through cell division and mitosis
Through the combination of sperm and egg chromosomes
Through the interaction of genes and the environment
What happens during meiosis?
Existing egg and sperm cells replicate and divide
Each egg cell and sperm cell splits into four separate cells
Chromosomes in egg and sperm cells combine and form an offspring
Each sperm cell and egg cell contains a unique combination of genes
What is the result of fertilization?
An offspring with a full set of paired chromosomes
An offspring that is identical to the parent
An offspring with a unique combination of genes
An offspring with a changed phenotype
What is an organism's genotype?
An organism's complete set of genes
The interaction of an organism's genes and its environment
How a trait appears or is expressed
A permanent change in the sequence of DNA in a gene
How can an organism's environment influence its phenotype?
By changing the organism's genes
By changing the organism's genotype
By changing the organism's inherited traits
By changing the expression of a trait in an individual organism
What are some physical factors that can influence phenotype?
Light levels, temperature, moisture, and nutrients
Social group and behavior
Mutation and genetic variation
Cell division and mitosis
How do mutations occur?
Through asexual reproduction
Through exposure to harsh chemicals or severe radiation
Through the interaction of genes and the environment
Through the combination of sperm and egg chromosomes
What is a mutation?
A permanent change in the sequence of DNA in a gene
An error in the DNA's arrangement in a gene
A change in an organism's inherited traits
A change in the expression of a trait in an individual organism
Do all mutations affect an organism's traits?
Yes, all mutations have an effect on an organism
No, most mutations have no effect on an organism
Yes, all mutations help an organism survive
No, most mutations are harmful to an organism
How can a trait change so that it can be passed to the next generation?
Through asexual reproduction
Through exposure to harsh chemicals or severe radiation
Through the interaction of genes and the environment
Through mutation or changing an organism's genes
What is an organism's phenotype?
How a trait appears or is expressed
An organism's complete set of genes
The interaction of an organism's genes and its environment
A permanent change in the sequence of DNA in a gene
What is the role of DNA in inheritance?
It carries the genetic information from parents to offspring
It determines the physical appearance of the offspring
It controls the behavior of the offspring
It has no role in inheritance
What is the process of creating new cells called?
Meiosis
Mutation
Cell division
Inheritance
How does a mutation in a gene affect an organism?
It can change the organism's phenotype
It can change the organism's genotype
It can change the organism's behavior
It has no effect on the organism
