Heredity And Genetics

1. Heredity is best described as the -

Storage of waste materials produced by cells

Passage of genetic material from generation to generation

Communication of information between an organism's cells

Production of energy for use in an organism's cells

2. Genes are located in which part of the cell?

Endoplasmic reticulum

Chromosome

Cytoplasm

Lysosome

3. An organism inherits its genetic instructions from its -

Environment

Offspring

Parent(s)

Food source

4. The primary function of the chromosome is to -

Store the genetic instructions needed to specify traits.

Release energy by breaking down food molecules.

Transport waste materials rapidly out of the cell.

Relay messages between different cells in animals.

5. Which of the following cell organelles contains chromosomes?

Vacuole

Ribosome

Mitochondria

Nucleus

6. Recessive traits are expressed (are seen in an organism) -

In 1/4 of the offspring produced.

Always in all members in the population.

Only when the dominant allele is not present.

If the trait is carried by the male.

7. A scientist studying pea plants discovered that when he crossed tall male pea plants with tall female plants most of the offspring pea plants were tall. Only a few offspring pea plants were short. What does this tell you about the height of pea plants?

Pea plants grow taller in the sun

Pea plant height is controlled by heredity

Pea plant height is not controlled by heredity.

Pea plants are never short.

8. The table lists traits and whether they are recessive or not for two parents. Based on the data table, if the parents reproduce and create offspring, the offspring will -

Most likely have brown hair and definitely not have blue eyes.

Definitely have brown hair and definitely have blue eyes.

Definitely have red hair and most likely have brown eyes.

Most likely have red hair and maybe have blue eyes.

9. What is the proper order from largest to smallest?

DNA --> Nucleus --> Chromosomes --> Cell --> Genes

Genes --> DNA --> Chromosomes --> Nucleus --> Cell

Cell --> Nucleus --> Chromosomes --> DNA --> Genes

Genes --> Cell --> Nucleus --> Chromosomes --> DNA

10. In humans, the gene for brown eyes is dominant over the gene for blue eyes, which is recessive. If two blue-eyed parents have six children, how many of their children will have blue eyes?

Zero

Two

Four

Six