Q2W2: Mon 10/20 - Review Day!

​Happy Monday 10/20

Q2W3

BW Mon 10/20

Go to PG 1 (Sem 1 Assignment Tracker)

NB Set Up!

Label and # PG 36
Unit 3 BW PG

Fold/glue "Unit 3 Genetics BW"

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Unit 3 IDEAS Chart

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NB Set Up!

Label and # PG 38
DNA Structure Notes

Fold/glue the PG that says "Revision"

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Label and # PG 39
DNA Structure Output*

Glue the half sheet "Structure of DNA"

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Label and # PG 40
DNA Replication Notes

Fold/glue Amoeba Sisters Video Recap

You have a quiz tomorrow!

It's on Meiosis, and Mitosis VS Meiosis

There is nothing to write in your NB today, you are just reviewing in the wayground! It is a grade!

Multiple Choice

Meiosis occurs in the testes in men and the ___________ in women.

• uterus
• cervix
• ovaries
• stomach

Multiple Choice

Haploid

• single set of chromosomes in a gamete (n)
• pair of chromosomes in a somatic cell (2n)
• Exchange of genetic material between homologous chromosomes
• Reproductive (Sex) cells, haploid # of chromosomes

Multiple Choice

If you wanted to create variation in a species, you would use

• mitosis because it's a combination of both parents' genes

• meiosis because it's a combination of both parents' genes

• mitosis because it creates identical copies of offspring

• meiosis because it creates identical copies of offspring

Multiple Choice

Meiosis is called reduction division because

• The chromosomes divide as the cells multiply

• The chromosomes multiply as the cells multiply

• The chromosome number is reduced as the cells divide

Multiple Choice

Three samples of an organism are taken, and it is found that the DNA is the same in all three samples. So how do each of these samples perform different functions?

• They are made from different stem cells.

• The organelles in the cells are different.

• The DNA mutated and this is a mistake.

• Cells are specialized because some DNA strands are turned on and others are off.

Multiple Choice

Non-disjunction, the failure of chromosomes to separate, can occur during which stage of cell division?

• Anaphase I

• Metaphase I

• Metaphase 2

• Prophase 1

Multiple Choice

A liverwort has 20 chromosomes after mitosis. How many chromosomes would the haploid cell have?

• 2

• 5

• 10

• 20

Multiple Choice

Which of the following would result from crossing-over?

• Deletion of amino acids in proteins

• Increased mutations in genetic material

• Increased variation in offspring

• Production of gametes that are genetically identical

Multiple Choice

A kangaroo has 8 chromosomes after meiosis. How many chromosomes does the diploid cell have?

• 32

• 16

• 8

• 4

Match

Match the following

• Two divisions, four daughter cells produced, daughter cells are different from parent

• One division, two daughter cells produced, daughter cells identical to parents

• DNA is copied (chromosomes are duplicated), Cells grow,

Meiosis

Mitosis

Both meiosis and mitosis

• Meiosis

• Mitosis

• Both meiosis and mitosis

Multiple Choice

Pairs of like (or similar) chromosomes are called

• Centromeres

• Chromatids

• Homologous

• Spindles

Multiple Choice

What is the purpose of meiosis?

• To produce 2 cells for sexual reproduction

• To produce 2 cells for repairing and growing

• To produce 4 cells for sexual reproduction

• To produce 4 cells for repairing and growing

Multiple Choice

The total number of chromosomes in a body cell is a full set, or the original number of chromosomes, called the

• homologous number

• haploid number

• diploid number

• cell count

Multiple Choice

The period of cell growth, prior to cell division is

• Interphase

• Anaphase

• Replication

• Reproduction

Multiple Choice

During metaphase 1 of meiosis, which of the following happens?

• Homologous chromosomes move toward opposite poles of the cell

• Homologous chromosome pairs line up along the cell's equator

• Centromeres of replicated chromosomes line up along the cell's equator.

• Centromeres divide as sister chromatids move toward opposite poles of the cells

Multiple Choice

When the cytoplasm divides after telophase, it is called

• cytokinesis

• cytology

• interkinesis

• replication

Multiple Choice

What is the purpose of mitosis?

• To produce 2 cells for sexual reproduction

• To produce 2 cells for repairing and growing

• To produce 4 cells for sexual reproduction

• To produce 4 cells for repairing and growing

Multiple Choice

The total number of chromosomes in a gamete (egg/sperm) cell is called the

• Homologous number

• Haploid number

• Diploid number

• Cell count

Multiple Choice

Which phase do we find chromosomes becoming visible for the first time?

• Prophase

• Metaphase

• Anaphase

• Telophase

Multiple Choice

The last stage of cell division is

• Telophase

• Prophase

• Interkinesis

• Anaphase

Multiple Choice

During metaphase 2 of meiosis, which of the following happens?

• Homologous chromosomes move toward opposite poles of the cell

• Homologous chromosome pairs line up along the cell's equator

• Chromatids line up along the cell's equator

• Centromeres divide as sister chromatids move toward opposite poles of the cell.

Multiple Choice

What advantages would there be for an organism to reproduce sexually and asexually at different times throughout the year?

• They could have more offspring.

• They could have less offspring with more variation

• They could have offspring with less variation

• They could have more offspring that have more variation

Multiple Choice

The difference between telophase 1 and 2 is that

• Telophase 1 produces four diploid daughter cells, and Telophase 2 produces four haploid daughter cells

• Telophase 1 produces 2 haploid daughter cells and Telophase 2 produces 4 haploid daughter cells

• Telophase 1 produces 2 diploid daughter cells and Telophase 2 produces 2 haploid daughter cells

• Telophase 1 produces 4 haploid daughter cells and Telophase 2 produces 4 diploid daughter cells

Multiple Choice

Diploid

• pair of chromosomes in a somatic cell (2n)
• Exchange of genetic material between homologous chromosomes
• Reproductive (Sex) cells, haploid # of chromosomes
• varying genotypes in a population

Multiple Choice

Crossing-over

• Exchange of genetic material between homologous chromosomes
• Reproductive (Sex) cells, haploid # of chromosomes
• varying genotypes in a population
• Random distribution of the pairs of genes on different chromosomes

Multiple Choice

Gamete

• Reproductive (Sex) cells, haploid # of chromosomes
• varying genotypes in a population
• Random distribution of the pairs of genes on different chromosomes
• Contain genes that code for a trait; composed of DNA & protein

Multiple Choice

Genetic Variability

• varying genotypes in a population
• Random distribution of the pairs of genes on different chromosomes
• Contain genes that code for a trait; composed of DNA & protein
• male gamete

Multiple Choice

Law of Independent Assortment

• Random distribution of the pairs of genes on different chromosomes
• Contain genes that code for a trait; composed of DNA & protein
• male gamete
• female gamete

Multiple Choice

Chromosome

• Contain genes that code for a trait; composed of DNA & protein
• male gamete
• female gamete
• Diploid cell; resulting from fertilization of sperm and egg

Multiple Choice

Sperm

• male gamete
• female gamete
• Diploid cell; resulting from fertilization of sperm and egg
• Union of egg and sperm, resulting in a zygote

Multiple Choice

Egg

• female gamete
• Diploid cell; resulting from fertilization of sperm and egg
• Union of egg and sperm, resulting in a zygote
• When the chromosomes separate during meiosis

Multiple Choice

Zygote

• Diploid cell; resulting from fertilization of sperm and egg
• Union of egg and sperm, resulting in a zygote
• When the chromosomes separate during meiosis
• an organism produced asexually from one ancestor; genetically identical.

Multiple Choice

Fertilization

• Union of egg and sperm, resulting in a zygote
• When the chromosomes separate during meiosis
• an organism produced asexually from one ancestor; genetically identical.
• Organ that produces sperm & egg; testis or ovaries

Multiple Choice

Segregation

• When the chromosomes separate during meiosis
• an organism produced asexually from one ancestor; genetically identical.
• Organ that produces sperm & egg; testis or ovaries
• Chunk of DNA that determines a trait

Multiple Choice

Clone

• an organism produced asexually from one ancestor; genetically identical.
• Organ that produces sperm & egg; testis or ovaries
• Chunk of DNA that determines a trait
• Type of sexual reproduction that creates haploid gametes

Multiple Choice

Gonads

• Organ that produces sperm & egg; testis or ovaries
• Chunk of DNA that determines a trait
• Type of sexual reproduction that creates haploid gametes
• single set of chromosomes in a gamete (n)

Multiple Choice

Gene

• Chunk of DNA that determines a trait
• Type of sexual reproduction that creates haploid gametes
• single set of chromosomes in a gamete (n)
• pair of chromosomes in a somatic cell (2n)

Multiple Choice

A cat has a total of 40 chromosomes in its body cells. How many in its sex cells?

• 38

• 20

• 76

• 10

Multiple Choice

The process of crossing over occurs in what meiotic phase?

• anaphase 1
• prophase 1
• prophase 2
• telophase 1

Multiple Choice

Meiosis would occur in which of these cells?

• skin cells

• liver cells

• brain cells

• sperm cells

Multiple Choice

The chromosomes that pair up during meiosis, are called __________ chromosomes.  

• homozygous 
• asexual
• homologous
• genes

Multiple Choice

In humans, sperm cell have ___________ chromosomes and are ___________________, while skin cells have _____________ chromosomes are are diploid.

• 23. haploid. 46 diploid

• 46. haploid. 23. diploid

• 23 diploid. 46 haploid

• 46. diploid. 23. haploid.

Multiple Choice

Crossing over helps promote ?

• male genotype
• genetic variation
• DNA replication
• mitosis

Multiple Choice

You get one homologous chromosome from your ________ and one from your _______.  

• dad, mom
• brother, sister
• grandmother, grandfather
• dog, cat

Multiple Choice

With mitosis you get ___, _________ cells, but with meiosis, you get ___, ____________.

• 4 different, 2 identical
• 4 identical, 2 different
• 2 different, 4 identical
• 2 identical, 4 different

Multiple Choice

The purpose of meiosis is to form ________ cells.

• body
• sex
• somatic
• brain