Unit 6: Heredity

Unit 6: Heredity

Spring Semester 2023

​What is heredity?

Heredity is the passing on of inherited characteristics genetically from one generation to another.

Examples:

• A mother and father with brown eyes having a child with brown eyes.

• An aphid (insect) passing on its green color to its offspring.

• An oak tree passing on its genetic information to the next generation.

Multiple Choice

Which of the following best describes heredity?

• A student learning how to read in school.

• The passing of blood from parent to offspring.

• The transfer of genetic information from parent to offspring.

• The largest puppy in the litter getting all the food.

Genetic Information = Genetic Material

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

Plant cell stores genetic information inside the nucleus!

• 2 parents

• Diverse offspring

• 50% of DNA from each biological parent

Sexual Reproduction

• 1 parent

• Uniform offspring

• 100% of DNA passed from parent to offspring through mitosis (makes copies)

Asexual Reproduction

Two types of Reproduction

Multiple Choice

Which image shows asexual reproduction?

• Image A

• Image B

Multiple Choice

Which image shows sexual reproduction?

• Image A

• Image B

Multiple Choice

Which image shows diverse offspring?

• Image A

• Image B

Multiple Choice

Which image shows uniform offspring?

• Image A

• Image B

Multiple Choice

Which of the following statements is correct?

• Chromosomes are a segment of DNA.

• DNA is found only in the blood.

• Chromosomes have less genetic information than a gene.

• A gene is a segment of DNA that holds genetic information for individual traits.

Multiple Choice

Where is genetic information stored that determines blood type?

• Inside the nucleus

• On the cell membrane

• In the cytoplasm

• Inside every organelle

Multiple Choice

Which organisms produce diverse offspring?

• Black Mold

• Bell Tree Dahlia

• Spruce

• Hyrda

Multiple Select

Which organisms produce uniform offspring? (more than one answer)

• Black Mold

• Bell Tree Dahlia

• Spruce

• Hyrda

Multiple Choice

In binary fission, a parent cell divides in two creating a _____ _____ offspring.

• beautifully intelligent

• strong independent

• genetically identical

• genetically diverse

Multiple Choice

The cell in the picture is reproducing through binary fission. A form of asexual reproduction. Which statement correctly describes the process occurring in the image?

• pass on genetic information to its offspring through heredity.

• teach its offspring to look and act like it.

• form offspring that learn to look like the parent through factors in the environment.

• hold onto some genetic material so that its offspring only get so of its traits.