Unit 04: Investigating Genetics

Heredity is defined as the passage of genetic instructions from one generation to the next. Which of the following is NOT an example of these genetic instructions in humans?

• Height

• Skin Color

• Dimples

• Spoken Language

An organism inherits its genetic instructions from the —

• organism's offspring

• organism's parents

• organism's mating partner

• organism's prey

The passage of genetic instructions from one generation to the next is known as —

• heredity

• commensalism

• traits

• phenotype

Which of the following best defines heredity?

• The passage of genetic instructions from one generation to the next generation

• The study of the genetic instructions that are passed from parent to offspring

• The specific sequence of DNA and RNA that code for specific traits

• The process of creating more organisms of a species

Which of the following is not an example of heredity?

• Lions show their cubs how to hunt for prey.

• Bacteria reproduce asexually to create cells identical to the parent cell.

• A boy who is 5 feet, 10 inches is taller than his father who is 5 feet, 8 inches tall.

• A red geranium plant is bred with a white geranium plant which produces a pink geranium.

The amoeba is a unicellular protozoan with no fixed shape. It moves by constantly changing the shape of its body. One type of amoeba, Amoeba proteus, reproduces asexually through a process known as binary fission. The cell divides into two separate cells; the original parent cell and the new cell.

According to the information and image above, which of the following statements best describes the new amoeba cell?

• The new amoeba cell only contains half of the genetic material from the parent amoeba cell.

• The new amoeba cell is a different species than the parent amoeba cell.

• The new amoeba cell received half of its genetic material from each parent.

• The new amoeba cell is genetically identical to the parent amoeba cell

What would be a possible disadvantage of asexual reproduction?

• Ability to reproduce in the absence of a mate

• Results in low genetic variation of the species

• Allows for more genetic variation in the offspring

• Allows for more genetic variation in the offspring

In sexual reproduction, how many genes does an offspring receive for each trait?

• 1

• 2

• 3

• 4

Sexual reproduction —

• results in genetic variation in the offspring

• produces offspring that are identical to the parent

• decreases the chances of survival of the species

• results in genetic material being donated to offspring by only one parent

Hydra reproduce by a process known as budding, as shown in the diagram below.

This process is the formation of a new individual that is a clone of the parent.

This type of reproduction is —

• sexual

• sporulation

• asexual

• binary fission