Review Unit test 7.L.2

Review Unit test 7.L.2

End of 2nd Quarter

Multiple Choice

Pedigrees are most often used to determine which of the following?

• the rate of cell division in a person

• the likelihood of a person inheriting genetic diseases

• the ability of someone to resistance unfavorable environmental conditions

• the number of chromosomes in a person’s DNA

Multiple Choice

Which of the following has the greatest impact on the length and quality of human life?

• where a person lives

• inherited traits from parents

• the age of parents when they produced offspring

• diet

Multiple Choice

After examining a woman’s family history and learning about her life style choices, a doctor concludes that the woman has a high risk of getting lung cancer. Which of the following best explains how the doctor came to this conclusion?

• Pedigrees can track cigarette smoking through several generations.

• Lung cancer is the most common type of cancer in women.

• Lung cancer can be caused by genetic and environmental factors.

• Both of her parents were carriers of lung cancer.

Multiple Choice

Which is the primary advantage of sexual reproduction when compared to asexual reproduction?

• There is a greater number of offspring.

• There is greater genetic variety in offspring.

• There is a longer development time for offspring.

• There is more food available to offspring.

Multiple Choice

Which of the following best explains offspring with greater variation from sexual reproduction?

• mitosis

• single parent

• budding

• meiosis

Multiple Choice

Which of the following is characteristic of sexual reproduction?

• Single specialized cell from a female joins with a specialized cell from another female.

• Cells divide allowing offspring to have genetic variations that strengthen the species.

• Gametes are produced containing identical numbers of chromosomes.

• A single specialized cell from a female joins with a specialized cell from a male.

Multiple Choice

When an asexually reproducing plant produces offspring, how does the offspring compare to the parent plant?

• The offspring would contain half the genetic material from the parent.

• The offspring would contain genes from two parents.

• The offspring would contain twice as much genetic information as the parent.

Multiple Choice

Which of the following statement about the genetic traits of humans is true?

• Recessive forms of genes are always visible.

• Visible traits depend on the dominant and recessive forms of genes from each parent.

• Dominant forms of genes are always inherited from both parents.

• Visible traits are the same for each family member.

Multiple Choice

When environmental conditions become unfavorable, which of the following statements best describes what will happen to organisms living in the area?

• Organisms in the area will move underground to avoid the unfavorable environmental conditions.

• Organisms with traits to resist the environmental conditions will survive and have offspring.

• All organisms will move to a different environment.

• Organisms will work together to help each other resist unfavorable environmental conditions.

Multiple Choice

In plants, which of the following is considered a dominant trait?

• the size of the plant

• ability to release oxygen

• ability to process carbon dioxide

• amount of chlorophyll present

Multiple Choice

During sexual reproduction one sperm cell unites with one egg cell to produce a fertilized egg that develops into a new organism. Which of the following statements best describes how an offspring receives genetic information from its parents?

• The offspring receives half of its genes from each parent.

• The offspring receives more genes from the female parent than from the male parent.

• The offspring receives more genes from the male parent then from the female parent

• The offspring receives all the genes from each parent.

Multiple Choice

Students in Mrs. Adam’s science class have designed an experiment to see how crossbreeding plants will affect their offspring. As part of their experiment, the students cross bred two plants of the same species. One plant was tall, and one plant was short. Students were instructed to create a Punnett square to show the possible genetic combinations for the offspring produced by crossbreeding the plants. Which student has created an accurate Punnett square?

• Marie

• David

• Elaine

• Joseph

Multiple Choice

Some animal species are limited to genetically determined behaviors. Other animal species have more complex brains and can learn and modify a wide variety of behaviors. Behaviors in animal species are most likely affected by which of the following?

• experiences only

• inheritance only

• both inheritance and experiences

• quality of diet consumed

Multiple Choice

Solar radiation can cause skin cancer in an individual. If a man with skin cancer caused by solar radiation has offspring, which of the following statements would be true?

• only the man and his male offspring would be affected

• the man and all of his offspring would be affected

• only the man getting skin cancer would be affected

• only the man and his female offspring would be affected

Multiple Choice

In a genetics laboratory, two heterozygous tall plants are crossed. If tall is dominant over short, what would be the expected phenotypes of the offspring?

• 100% tall, 0% short

• 50% tall, 50% short

• 75% tall, 25% short

• 25% tall, 75% short

Multiple Choice

If Jessica does not have dimples (dd) and both of her parents have dimples (Dd), which statement is true?

• Jessica inherited both genes from her father.

• Jessica inherited one dominant form of the gene from each parent.

• Jessica inherited one recessive form of the gene from each parent.

• Jessica inherited both genes from her mother.

Multiple Choice

Amber is a 9-year-old girl with diabetes. Which of the following would a doctor recommend to manage the symptoms of diabetes?

• maintaining a healthy diet

• washing her hands regularly

• taking antibiotics regularly

• limiting her amount of physical activity

Multiple Choice

Punnett Squares are useful in predicting which of the following?

• genotypes and phenotypes

• only genotypes

• only phenotypes

• sequencing of chromosomes

Multiple Choice

John is a 25-year-old man who gets annual physicals, exercises regularly, maintains a healthy weight, and eats a well-balanced diet. During a recent doctors visit, James just discovered he has a life threatening disease. Which of the following would most likely be linked to the cause of his disease?

• inherited genes

• unsanitary conditions

• poor life choices

• lack of proper medical care