Willoridge Meiosis sex cells

Willowridge Meiosis sex cells

Fertilization to produce a zygote

The Egg is 1n and the sperm is 1n.

Together they form the Zygote with is 2n

Cell division

Forming a zygote

Meiosis

DNA Square Dance

Meiosis Crossover

Genetic variety. It makes you different from your siblings even though you have the same parents!

XX female . XY male

Willowridge students, you have a lesson on schoology to complete!

Identify the Mitosis stages of an onion.

Questions

Meiosis, Mitosis, Cell differentiation

Multiple Choice

Stem cells are

• undifferentiated or unspecialized cells in the body.

• differentiated or specialized cells in the body.

• only found in the inner mass cells of blastocyst

• only found in a fetus

Multiple Choice

What is this?

• Trisomy 13
• Monosomy 21
• 47, XXY
• Trisomy 21

Multiple Choice

Females have ____ and males have _____ chromosomes.

• XX, XY
• XY, XX
• XX, XX
• XY, XY

Multiple Choice

A human zygote should have _____ chromosomes inside.

• 46
• 23
• 92
• 64

Multiple Choice

Chromosomes exchange genetic material during 

• crossing over
• replication
• synthesis
• translation

Multiple Choice

Crossing over helps promote 

• male genotype
• genetic variation
• DNA replication
• mitosis

Multiple Choice

What is one of the advantages, why is it better to reproduce sexually versus asexually?

• survival of the fittest
• overproduction
• genetic variation
• cloning

Multiple Choice

What causes genetic variation in meiosis?

• chromosomes lining up
• crossing over of chromosomes
• separation of chromosomes
• chromosomes pulling apart

Multiple Choice

Compared to the number of chromosomes contained in a body cell, how many chromosomes would normally be contained in a gamete?

• The same number
• One-fourth as many
• Twice as many
• Half as many

Multiple Choice

Which letter(s) in the diagram correspond to cells that are haploid? 

• A
• B
• C
• A and B

Multiple Choice

A male shark has 40 chromosomes in each of its sex cells. How many would be present in its body cells?

• 20
• 40
• 80
• 160

Multiple Choice

Which process and type of resulting cells are represented?

• mitosis, gametes
• mitosis, body cells
• meiosis, gametes
• meiosis, body cells

Multiple Choice

What is it called when a sperm and egg meet?

• meiosis
• fertilization
• cell division
• mitosis

Multiple Choice

A fertilized egg is called

• egg
• lettuce
• zygote
• sperm

Multiple Choice

This type of cell has a nucleus.

• prokaryotes
• eukaryotes
• cytoplasm

Multiple Choice

Name the growth phase of the cell cycle.

• metaphase
• telophase
• interphase
• anaophase

Multiple Choice

Mitosis produces how many daughter cells ?

• 6
• 4
• 8
• 2

Multiple Choice

Humans have how may chromosomes ?

• 112
• 46
• 8
• 67

Multiple Choice

The male sex cell is called

• egg
• zygote
• sperm
• mitosis

Multiple Choice

The female sex cell is called

• zygote
• sperm
• fertilization
• egg

Multiple Choice

How many cells are produced during telophase I ?

• 4
• 8
• 2
• 0

Multiple Choice

How many daughter cells are produced from meiosis ?

• 10
• 6
• 4
• 2

Multiple Choice

The type of reproduction in which the genetic material from two different cells combine

• budding
• chromosomes
• diploid
• sexual reproduction

Multiple Choice

Cells that have only one chromosome from each pair

• meiosis
• haploid
• homologous
• diploid

Multiple Choice

What process best explains how muscle cells and nerve cells can develop from the same fertilized egg?

• genetic engineering
• survival of the fittest
• differentiation
• selective breeding

Multiple Choice

What does "pluripotent" mean?

• able to divide and make many different types of cells
• not able to divide
• can only divide and make one cell type 
• if it divides, it will make a cancerous tumor

Multiple Choice

Stem cells can be obtained from

• embryos
• some adult tissues
• umbilical cord blood
• all of the above

Multiple Choice

Stem cells are

• cells that grow uncontrollably
• undifferentiated and can be any type of cell
• never go through cell division
• only found in embryos

Multiple Select

What is a difference between mitosis and meiosis? Mark ALL that apply!

• Mitosis occurs in the cytoplasm and Meiosis occurs in the nucleus.

• Mitosis results in diploid (2n) daughter cells and Meiosis results in haploid (n) daughter cells.

• Mitosis results in 2 daughter cells and Meiosis results in 4 daughter cells.

• Mitosis makes somatic (body) cells and Meiosis makes gametes (egg and sperm cells).

Multiple Choice

Juan brought home a tiny puppy. His puppy grew. Four weeks later, his puppy had grown to twice its original size. Which answer below best explains why Juan's puppy got bigger?

• The number of cells in the puppy’s body increased.

• The puppy’s body absorbed the food it ate.

• The puppy’s body cells grew larger as it got older.

• Parts of the puppy’s body stretched out more.

Multiple Choice

Is interphase a part of Mitosis?

• Yes, it happens after prophase

• No, it happens before mitosis

Multiple Choice

What is "crossing over"?

• The exchange of genes between chromosomes during meiosis that results in genetic diversity.

• Programmed cell death (cell suicide) to prevent the spread of mutated/cancerous cells.

• A type of cell division that creates gametes (sperm and egg cells).

• A type of cell division that results in two daughter cells each having the same number of chromosomes as the parent cell.

Multiple Choice

What is apoptosis?

• Programmed cell death (cell suicide) to prevent the spread of mutated/cancerous cells.

• A type of cell division done by most of your body cells.

• The final separation into two daughter cells and completion of the cell cycle.

• Sperm and egg cells.

Multiple Choice

Daughter cells created by meiosis II have

• half the parents DNA

• exact copy of the parent's DNA

• twice the parent's DNA

• created their own DNA from scratch

Multiple Choice

How many chromosomes does a human egg or sperm (gamete) cell have?

• 23

• 46

• 42

• 26

Multiple Choice

How many chromosomes does a human somatic (body) cell have?

• 46

• 23

• 42

• 26

Multiple Choice

Why do cells go through mitosis?

• to make food from sunlight

• to get air into the cells

• to create proteins

• to reproduce, grow, and repair/replace cells

Multiple Choice

The G1, S, and G2 are parts of which phase of the cell cycle?

• Prophase

• Interphase

• Telophase

• Anaphase

Multiple Choice

What is cytokinesis?

• When 2 cells merge together to make 1 giant cell

• The end of the cell cycle when the cell divides and mitosis is complete

• The stage when DNA condenses into chromosomes

• The stage where chromosomes are pulled to opposite ends of the cell.

Multiple Choice

What is the correct order of the phases of mitosis?

• Metaphase, Anaphase, Prophase, Telophase,

• Pelophase, Motophase, Anaphase, Trophase

• Prophase, Metaphase, Anaphase, Telophase

• Telophase, Anaphase, Prophase, Metaphase

Multiple Choice

Cells of organisms must replicate for?

• Growth

• Replacement of dying cells

• Repair of damaged cells

• All of the above

Multiple Choice

Cells spend most of their lives in which phase?

• Interphase

• Prophase

• Telophase

• Metaphase

Multiple Choice

How is cancer related to cell division?

• Mutations can cause uncontrolled cell division which causes cancerous cells to spread rapidly and take nutrients from healthy cells.

• Cancer stops cell division from happening.

• Cell division causes viruses that spread around the body and cause cancer.

• Cancer is not related to cell division.