Copy of 4.) Meiosis Models (5/28/2026)

Last updated about 3 hours ago

9 questions

Note from the author:

Instructions

Part 1

Part 2

Part 3

Copy of 4.) Meiosis Models (5/28/2026)

Last updated about 3 hours ago

9 questions

Note from the author:

Use the models, the short paragraphs, and your background knowledge to answer the questions.

B.4.5 Make and defend a claim based on evidence that inheritable genetic variations may result from: (1) new genetic combinations through meiosis, (2) viable errors occurring during replication, and (3) mutations caused by environmental factors.

Learning Goals
I can use evidence to describe how meiotic events can produce inheritable genetic variations.
I can explain the purpose of meiosis.
I can explain the relationship between meiosis and fertilization.
All short answer questions must be re-graded by Mr. Poe. 

Instructions

Use the models, the short paragraphs, and your background knowledge to answer the questions.

B.4.5 Make and defend a claim based on evidence that inheritable genetic variations may result from: (1) new genetic combinations through meiosis, (2) viable errors occurring during replication, and (3) mutations caused by environmental factors.

Learning Goals
I can use evidence to describe how meiotic events can produce inheritable genetic variations.
I can explain the purpose of meiosis.
I can explain the relationship between meiosis and fertilization.
All short answer questions must be re-graded by Mr. Poe. 

Part 1

Why?

Cells reproduce through mitosis to make exact copies of the original cell. This is done for growth and repair. Sexually reproducing organisms have a second form of cell division that produces reproductive cells with half the number of chromosomes. This process is called meiosis, and without it, humans, oak trees, beetles, and all other sexually reproducing organisms would be vastly different than they are today.

Read This!

Alleles are alternative forms of the same gene. For example, gene A may contain the information for fur color. One allele “A” may result in white fur, while the alternative allele “a” may result in black fur.  Homologous chromosomes are chromosomes that contain the same genes, although each chromosome in the homologous pair may have different alleles.

Considering the genetic makeup of the homologous pairs, will the cells at the end of telophase I be genetically identical to each other? _______ 

Part 2

Explain your answer to 5d in a complete sentence.

Part 3

Copy of 4.) Meiosis Models (5/28/2026)

Copy of 4.) Meiosis Models (5/28/2026)

Explain your answer to 5d in a complete sentence.

Explain your answer to 5d in a complete sentence.

What would the ploidy of the zygote be if egg and sperm were produced by mitosis rather than meiosis? How would this affect the ploidy (number of chromosomes - haploid, diploid, polyploid) of each successive generation?

Which of the statements below correctly describes the relationship between the cells at the end of telophase I and the original cell (select all that apply)?

Which of the statements below correctly describes the relationship between the cells at the end of meiosis II and the original cell?