Tuesday, May 31, 2016
Friday, May 27, 2016
Ecology and Evolution Review Videos
There are TWO videos that you will need to watch AND take notes on. Please take notes on the videos as if you were taking notes from me in class. The videos are as follows;
VIDEO #1:
(https://www.youtube.com/watch?v=7VM9YxmULuo)
By: amoeba sisters
Title:
VIDEO #1:
(https://www.youtube.com/watch?v=7VM9YxmULuo)
By: amoeba sisters
Title:
"Natural Selection and the Bacterial Resistance"
VIDEO #2:(https://www.youtube.com/watch?v=wpKulkADzBk)
By: Amoeba sisters
Title:
"Dichotomous Keys: Identification Achievement Unlocked"
VIDEO #2:(https://www.youtube.com/watch?v=wpKulkADzBk)
By: Amoeba sisters
Title:
"Dichotomous Keys: Identification Achievement Unlocked"
Wednesday, May 25, 2016
Cell Division - DNA replication - Protein Synthesis EOC Review Questions
Please complete the questions here.
1. Before mitosis begins, which happens before the nucleus starts dividing?
a. The cytoplasm separates.
b. The DNA replicates.
c. The sister chromatids separate.
d. The homologous chromosomes cross over.
2. A strand of DNA has these bases: AGC CAT GTA TAC What is the
complementary DNA strand?
a. ACG GAT CTA TAG
b. TCG GTA CAT ATG
c. TGC CTA GAT ATC
d. UCG CUA CAU AUG
3. Which statement best describes the relationship that exists among proteins,
DNA, and cells?
a. Proteins combine to produce cells, which produce DNA.
b. Proteins are made up of DNA, which determines the cells that are
c. DNA is made up of proteins, which tell a cell how to function.
d. Cells contain DNA, which controls the production of proteins.
4. Why is meiosis important for sexual reproduction?
a. It allows the zygote formed from fertilization to have triple the
b. It allows gametes to have twice the original number of chromosomes
c. It allows gametes to have half the original number of chromosomes of
d. It allows the zygote formed from fertilization
5. Which process produces the most variation within a species?
a. asexual reproduction
b. sexual reproduction
c. mitosis
d. cloning
6. What are the subunits of DNA and their function?
a. nucleotides that store information
b. monosaccharides that provide quick energy for the cell
c. lipids that store energy and provide insulation
d. proteins that provide the building blocks for the structural components
produced.
7. During which phase of the cell cycle is the cell growing and preparing for
cellular division?
a. Cytokinesis
b. Anaphase
c. Prophase
d. Interphase
8. A segment of DNA has this sequence: ATA GCA CAT GTA What is the mRNA
sequence transcribed from this segment?
a. TAT CGT GTA CAT
b. TAT GCT CTA GAT
c. UAU CGU GUA CAU
d. UAU GCU CUA CAU
9. This chart shows which amino acids are coded for by different combinations
of mRNA nucleotides. Which amino acids are coded for by an mRNA segment
that reads CAG GUG?
a. arginine and valine
b. isoleucine and arginine
c. glutamine and valine
d. valine and isoleucine
10. Which would most likely produce a mutation that is passed on to offspring?
a. radiation changing the DNA sequence in skin cells
b. a gamete with an extra chromosome forming
c. tobacco smoke altering the genes in lung cells
d. exposure to chemicals altering nerve cell function
11. How does DNA code for proteins in a cell?
a. by creating a new double helix structure
b. by using its phosphate and sugar molecules
c. by adding more hydrogen bonds to its structure
d. by arranging certain nitrogen bases of the cell in a particular order
12. What is the result when a single cell reproduces by mitosis?
a. two cells with genetic material identical to the parent cell
b. two cells with half the genetic material of the parent cell
c. four cells with half the genetic material of the parent cell
d. four cells with genetic material identical to the parent cell
13. How would overexposure to X-rays affect most animal cells?
a. It would increase cell specialization in organs.
b. It would change the sequence of DNA nucleotides in affected cells.
c. It would produce new nucleotides for DNA molecules.
d. It would cause an increase in red blood cell production.
14. How are sexual reproduction and asexual reproduction different?
a. Sexual reproduction produces offspring identical to the parents, but
asexual reproduction produces offspring with traits from both parents.
b. Asexual reproduction produces offspring identical to the parents, but
sexual reproduction produces offspring with traits from both parents.
c. Sexual reproduction only occurs in multicellular organisms, but asexual
reproduction only occurs in unicellular organisms.
d. Asexual reproduction only occurs in multicellular organisms, but sexual
reproduction only occurs in unicellular organisms.
15. Which characteristic is present in offspring produced by sexual reproduction,
but is missing in offspring produced by asexual reproduction?
a. an identical copy of parent chromosomes
b. twice the number of parent chromosomes
c. only half the number of parent chromosomes
d. an independent assortment of parent chromosomes
16. Which factor most affects the order of amino acids in a protein?
a. the DNA located in the nucleus of the cell
b. the cell in which the protein is located
c. the amount of ATP available for the cell’s use
d. the area in a cell where proteins are produced
17. Which best explains why muscle cells are different from blood cells?
a. A mutation occurs during the development of muscle cells but not in
blood cells.
b. Different genes are activated in muscle cells than in blood cells.
c. Muscles cells experience different environmental influences than blood
cells.
d. Muscle cells are produced by the brain, but blood cells are produced by
the heart.
18. The diagram below shows the cell cycle.
Which of the following activities occurs in the G1 phase?
A. growth of the cell
B. replication of the DNA
C. formation of the mitotic spindle
D. breakdown of the nuclear membrane
19. Which of the following statements best describes why the change in only one
DNA base of the hemoglobin gene results in a different protein product of
the gene?
a. The change prevents mRNA from being made.
b. The change alters the amino acid sequence of the protein.
c. The change causes the blood cells to divide in an uncontrolled way.
d. The change creates a second strand of mRNA for each RNA molecule.
20. In a eukaryotic cell, which of the following processes directly involves DNA?
a. Translation
b. cellular respiration
c. active transport of ions
d. replication of chromosomes
21. In a molecule of double-stranded DNA, the amount of adenine present is
always equal to the amount of
a. cytosine.
b. guanine.
c. thymine.
d. uracil.
22. Which of the following statements best explains why offspring produced by
sexual reproduction often look similar to, but not exactly the same as, their
parents?
a. The offspring have genetic material from both the mother and the
father.
b. The cells of the offspring contain all the dominant genes from the
parents.
c. The cells of the offspring undergo mitosis many times as the offspring
grow and develop.
d. The offspring have a period of embryonic development, rather than
being born immediately after fertilization.
1. Before mitosis begins, which happens before the nucleus starts dividing?
a. The cytoplasm separates.
b. The DNA replicates.
c. The sister chromatids separate.
d. The homologous chromosomes cross over.
2. A strand of DNA has these bases: AGC CAT GTA TAC What is the
complementary DNA strand?
a. ACG GAT CTA TAG
b. TCG GTA CAT ATG
c. TGC CTA GAT ATC
d. UCG CUA CAU AUG
3. Which statement best describes the relationship that exists among proteins,
DNA, and cells?
a. Proteins combine to produce cells, which produce DNA.
b. Proteins are made up of DNA, which determines the cells that are
c. DNA is made up of proteins, which tell a cell how to function.
d. Cells contain DNA, which controls the production of proteins.
4. Why is meiosis important for sexual reproduction?
a. It allows the zygote formed from fertilization to have triple the
b. It allows gametes to have twice the original number of chromosomes
c. It allows gametes to have half the original number of chromosomes of
d. It allows the zygote formed from fertilization
5. Which process produces the most variation within a species?
a. asexual reproduction
b. sexual reproduction
c. mitosis
d. cloning
6. What are the subunits of DNA and their function?
a. nucleotides that store information
b. monosaccharides that provide quick energy for the cell
c. lipids that store energy and provide insulation
d. proteins that provide the building blocks for the structural components
produced.
7. During which phase of the cell cycle is the cell growing and preparing for
cellular division?
a. Cytokinesis
b. Anaphase
c. Prophase
d. Interphase
8. A segment of DNA has this sequence: ATA GCA CAT GTA What is the mRNA
sequence transcribed from this segment?
a. TAT CGT GTA CAT
b. TAT GCT CTA GAT
c. UAU CGU GUA CAU
d. UAU GCU CUA CAU
9. This chart shows which amino acids are coded for by different combinations
of mRNA nucleotides. Which amino acids are coded for by an mRNA segment
that reads CAG GUG?
a. arginine and valine
b. isoleucine and arginine
c. glutamine and valine
d. valine and isoleucine
10. Which would most likely produce a mutation that is passed on to offspring?
a. radiation changing the DNA sequence in skin cells
b. a gamete with an extra chromosome forming
c. tobacco smoke altering the genes in lung cells
d. exposure to chemicals altering nerve cell function
11. How does DNA code for proteins in a cell?
a. by creating a new double helix structure
b. by using its phosphate and sugar molecules
c. by adding more hydrogen bonds to its structure
d. by arranging certain nitrogen bases of the cell in a particular order
12. What is the result when a single cell reproduces by mitosis?
a. two cells with genetic material identical to the parent cell
b. two cells with half the genetic material of the parent cell
c. four cells with half the genetic material of the parent cell
d. four cells with genetic material identical to the parent cell
13. How would overexposure to X-rays affect most animal cells?
a. It would increase cell specialization in organs.
b. It would change the sequence of DNA nucleotides in affected cells.
c. It would produce new nucleotides for DNA molecules.
d. It would cause an increase in red blood cell production.
14. How are sexual reproduction and asexual reproduction different?
a. Sexual reproduction produces offspring identical to the parents, but
asexual reproduction produces offspring with traits from both parents.
b. Asexual reproduction produces offspring identical to the parents, but
sexual reproduction produces offspring with traits from both parents.
c. Sexual reproduction only occurs in multicellular organisms, but asexual
reproduction only occurs in unicellular organisms.
d. Asexual reproduction only occurs in multicellular organisms, but sexual
reproduction only occurs in unicellular organisms.
15. Which characteristic is present in offspring produced by sexual reproduction,
but is missing in offspring produced by asexual reproduction?
a. an identical copy of parent chromosomes
b. twice the number of parent chromosomes
c. only half the number of parent chromosomes
d. an independent assortment of parent chromosomes
16. Which factor most affects the order of amino acids in a protein?
a. the DNA located in the nucleus of the cell
b. the cell in which the protein is located
c. the amount of ATP available for the cell’s use
d. the area in a cell where proteins are produced
17. Which best explains why muscle cells are different from blood cells?
a. A mutation occurs during the development of muscle cells but not in
blood cells.
b. Different genes are activated in muscle cells than in blood cells.
c. Muscles cells experience different environmental influences than blood
cells.
d. Muscle cells are produced by the brain, but blood cells are produced by
the heart.
18. The diagram below shows the cell cycle.
Which of the following activities occurs in the G1 phase?
A. growth of the cell
B. replication of the DNA
C. formation of the mitotic spindle
D. breakdown of the nuclear membrane
19. Which of the following statements best describes why the change in only one
DNA base of the hemoglobin gene results in a different protein product of
the gene?
a. The change prevents mRNA from being made.
b. The change alters the amino acid sequence of the protein.
c. The change causes the blood cells to divide in an uncontrolled way.
d. The change creates a second strand of mRNA for each RNA molecule.
20. In a eukaryotic cell, which of the following processes directly involves DNA?
a. Translation
b. cellular respiration
c. active transport of ions
d. replication of chromosomes
21. In a molecule of double-stranded DNA, the amount of adenine present is
always equal to the amount of
a. cytosine.
b. guanine.
c. thymine.
d. uracil.
22. Which of the following statements best explains why offspring produced by
sexual reproduction often look similar to, but not exactly the same as, their
parents?
a. The offspring have genetic material from both the mother and the
father.
b. The cells of the offspring contain all the dominant genes from the
parents.
c. The cells of the offspring undergo mitosis many times as the offspring
grow and develop.
d. The offspring have a period of embryonic development, rather than
being born immediately after fertilization.
Tuesday, May 24, 2016
Biological Molecules EOC Review
Please answer the questions below while viewing the video here.
(video can be found on youtube by TED-ED and titled "
How do carbohydrates impact your health? - Richard J. Wood")
(video can be found on youtube by TED-ED and titled "
How do carbohydrates impact your health? - Richard J. Wood")
1. Explain how the consumption of sugar affects your blood sugar
.
2. Identify the enzyme necessary to break down polysaccharides.
3. Provide examples of food that have high, medium, and low glycemic index.
4. Explain the function of insulin and identify the organ responsible for producing insulin.
5. Define insulin sensitivity and explain how a mutation in amylase affects your blood sugar.
6. Explain how an individual can develop insulin resistance.
Friday, May 20, 2016
Biotechnology Webquest
Use the following sites to research the answers to this worksheet (MUST USE A COMPUTER FOR THIS ASSIGNMENT)
A) DNA fingerprinting & gel electrophoresis
B) Transgenic organisms
C) Cloning
A) DNA fingerprinting & gel electrophoresis
B) Transgenic organisms
C) Cloning
Monday, May 16, 2016
Sex-Linked Crosses
Please watch the video on Sex-Linked Traits and answer the questions here.
Video: (https://www.youtube.com/watch?v=h2xufrHWG3E&list=PLwL0Myd7Dk1Hj8WCDlDVBlkqT-ZVdj7Js&index=3)
Title: Punnett Squares and Sex-Linked Traits
by: Amoeba sisters
Video: (https://www.youtube.com/watch?v=h2xufrHWG3E&list=PLwL0Myd7Dk1Hj8WCDlDVBlkqT-ZVdj7Js&index=3)
Title: Punnett Squares and Sex-Linked Traits
by: Amoeba sisters
Saturday, May 14, 2016
Genetic Disorder Webquest
Block 1 homework due May 16th, 2016
Please complete the webquest that is posted here. You may write your answers on a separate sheet of paper.
Please complete the webquest that is posted here. You may write your answers on a separate sheet of paper.
Thursday, May 12, 2016
Blood Type
Please watch the following video and answer the video questions here.
Video Title: (https://www.youtube.com/watch?v=9O5JQqlngFY)
Multiple Alleles (ABO Blood Types) and Punnett Squares
By:
Amoeba Sisters
Video Title: (https://www.youtube.com/watch?v=9O5JQqlngFY)
Multiple Alleles (ABO Blood Types) and Punnett Squares
By:
Amoeba Sisters
Wednesday, May 11, 2016
Blood Type
I)
Read the following information on this website
to answer the following questions:
1.
Human blood type is determined by alleles.
2.
Define codominant alleles.
3.
The gene for blood type has how many alleles?
4.
What are the 3 alleles for blood type?
II)
Click on “Blood Type Genotype” at
the bottom of website (http://www.biology.arizona.edu/human_bio/problem_sets/blood_types/genotypes.html)
NOTE:
·
The allele for Blood Type A is co dominant to allele
for Blood Type B. If you inherit allele
A from Mom and Allele B from dad, then the blood type of the child is AB.
·
“O” Allele is always recessive to allele A and
allele B for blood type.
5.
If you are Type A blood, what are the possible
genotypes?
6.
If you are Type B blood, what are the possible
genotypes?
7.
If you are Type AB blood, what are the possible
genotypes?
8.
If you are Type O blood, what are the possible
genotypes?
III)
Go to the following website to answer the
questions below:
1.
Read the information and summarize each section
of the reading into summary statements.
2.
Complete the following chart:
BLOOD TYPE
|
ANTIGEN ON SURFACE OF RED BLOOD CELL
|
A
|
|
B
|
|
AB
|
|
O
|
Tuesday, May 3, 2016
Nondisjunction AND nondisjunction disorders
1. Read the article found on this website about Non-disjunction AND non-disjunction disorders.
Website: http://education-portal.com/academy/lesson/nondisjunction-in-meiosis-definition-examples-quiz.html#lesson
(NOTE: STOP READING AT END OF "Syndromes Caused by Nondisjunction" SECTION!!)
2. Summarize each paragraph into statements AND diagrams.
3. Diagram "Normal disjunction during both rounds of meiosis "
4. Diagram "Nondisjunction "
Website: http://education-portal.com/academy/lesson/nondisjunction-in-meiosis-definition-examples-quiz.html#lesson
(NOTE: STOP READING AT END OF "Syndromes Caused by Nondisjunction" SECTION!!)
2. Summarize each paragraph into statements AND diagrams.
3. Diagram "Normal disjunction during both rounds of meiosis "
4. Diagram "Nondisjunction "
Monday, May 2, 2016
Meiosis Video
Please watch the following youtube videos to complete the homework:
Video #1 - Homologous Chromosomes
Watch Video #1 until 1:20
Video #1: "Biology Meiosis cell division" by Scil Olevels
(https://www.youtube.com/watch?v=BVO-Ram1L2M)
Video #2
"Meiosis" by ndsuvirtualcells
(https://www.youtube.com/watch?v=-DLGfd-Wpr4)
As you are watching the video, pause the video during or after the description of each meiotic phase, and 1. DRAW and 2. DESCRIBE in detail what occurs in cell cycle of Germline Cells and each phase
of meiosis.
Video #1 - Homologous Chromosomes
Watch Video #1 until 1:20
Video #1: "Biology Meiosis cell division" by Scil Olevels
(https://www.youtube.com/watch?v=BVO-Ram1L2M)
Video #2
"Meiosis" by ndsuvirtualcells
(https://www.youtube.com/watch?v=-DLGfd-Wpr4)
As you are watching the video, pause the video during or after the description of each meiotic phase, and 1. DRAW and 2. DESCRIBE in detail what occurs in cell cycle of Germline Cells and each phase
of meiosis.
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