151-3 disc-22fa HW8

QUESTION 10 Click directly on the chromosomal location named 2q22. You can click on either chromatid, but make sure you are clicking directly on the precise location. 3. 3 4 1 3 4 IMII ক - D

QUESTION 9 For the following questions, please fill in the blank with the correct number of chromosomes (e.g. 4). Please do not spell out the number (e.g. four) or include any kind of punctuation (e.g. 4.). In an organism where the diploid number of chromosomes is 2N=8, how many chromosomes would you expect to find in cells that are in G2 of the cell cycle? How many DNA molecules would you expect to find in cells that are in G2 of the cell cycle? How many chromosomes would you expect to find in cells that are in metaphase II? How many DNA molecules would you expect to find in cells that are in metaphase II? How many chromosomes would you expect to find in cells that are in anaphase of mitosis? How many DNA molecules would you expect to find in cells that are in anaphase of mitosis?

Directions Please do some out of class research to help you answer the questions below. Please include a url and page/video title to indicate where you found your information.  Prompt Sometimes, changes or “mutations” occur that prevent genes from doing their job properly. Certain mutations in the BRCA genes make cells more likely to divide and change rapidly, which can lead to cancer. If you inherit a mutated version of a BRCA gene, does this mean you are guaranteed to develop cancer? What other changes must occur for cancer to develop? Citation required.

Directions Please do some out of class research to help you answer the questions below. For part-a and part-c a citation is required. Please include a url and page/video title to indicate where you found your information. The citations for part-a and part-c can be the same, or different sources. Prompt Sometimes, changes or "mutations" occur that prevent genes from doing their job properly. Certain mutations in the BRCA genes make cells more likely to divide and change rapidly, which can lead to cancer. a. What are BRCA genes? What job do these genes normally do in the human body? Citation required. b. Given your understanding of meiosis and inheritance explain the following statement: "If either your mother or your father has a BRCA1 or BRCA2 gene mutation, you have a 50% chance of having the same gene mutation." c. If you inherit a mutated version of a BRCA gene, does this mean you are guaranteed to develop cancer? What other changes must occur for cancer to develop? Citation…

QUESTION 8 Match the stages of mitotic cell division to the descriptions of those stages. ]chromosomes attach to spindle fibers across the middle of the cell chromosomes are not yet duplicated so chromosomes only look like a line, Jonly one pair of centrioles in cell A. Cytokinesis cell membrane is pinching in forming a peanut-shaped cell, daughter chromosomes reach the poles and new nuclear membranes are forming around them B. Anaphase C. Telophase D. Early Interphase the nuclear membrane is breaking down, chromosomes are condensing, centrioles are building microtubule "highways" (spindle fibers) E. Prophase chromosomes are duplicated so chromosomes look like an "X", two pairs of centrioles and double the amount of organelles fill the cell F. Late Interphase cell is dividing into two identical cells G. Metaphase daughter chromosomes are beginning their migration to the poles on spindle fibers

QUESTION 5 Assuming mitosis is divided into prophase, prometaphase, metaphase, anaphase, and telophase, identify the events that take place in metaphase. The chromosomes move toward the equator by action of the kinetochore microtubules. The nucleolus disappears. U Centrioles replicate. The nuclear envelope disappears. Microtubules attach to kinetochores. All chromosomes are aligned on the metaphase plate. Sister chromatids split. Chromosomes condense. Spindle fibers form. Centrioles are migrating to opposite sides of the nucleus. QUESTION 6 Assuming mitosis is divided into prophase, prometaphase, metaphase, anaphase, and telophase, identify the events that take place in anaphase. Centrioles are migrating to opposite sides of the nucleus. Chromosomes decondense. The nuclear envelope reforms. The chromosomes move toward the equator by action of the kinetochore microtubules. All chromosomes are aligned on the metaphase plate. The nucleolus disappears. Sister chromatids split. Kinetochore…

Question 9 If round eye is a recessive trait, Jane has a pair of round eyes. Her genetic composition can be written as O Aa AA O aa O AA or Aa

QUESTION 11 "Waxy endosperm (wx), virescent seedling (v), and shrunken endosperm (sh) are all recessive mutants in corn. Waxy and shrunken are both on chromosome 9, located 18 map units apart. Virescent is on chromosome 5 and is not linked to the other loci. A strain of corn that is homozygous for waxy and virescent is crossed to a strain that is homozygous for shrunken endosperm. The F1 were entirely wild type. An F1 individual was then test crossed to a strain that is homozygous for waxy, virescent and shrunken. Of 1000 offspring, how many of the offspring will be virescent and shrunken, but not waxy?" 205 430 230 215 200

QUESTION 3 Lysogeny: happens when phage DNA is incorporated into the host cell genome happens when the burst time is unusually long involves the lysis of the host cell is the period during replicaiton when virions are not present O O O O

Question 42 Which statement is true about mitosis? Page 1 (1E O It is a form of asexual reproduction resulting in daughter cells that each have half the number of chromosomes as the parent cell. O It is a form of asexual reproduction resulting in daughter cells that each have one set of chromosomes identical to the parent cell. O l is a form of sexual reproduction resulting in daughter cells that cach have one set of chromosomes identical to the parent cell. O It is a form of sexual reproduction resulting in daughter cells that each have half the number of chromosomes as the parent cell. « Previous Next Quiz saved at 9:05am Submit O

Question 8 Offspring (new cell) DNA is identical to the parent DNA in: O mitosis ( meiosis both

Biology section, biology, please solve question 16

QUESTION 25 To visualize and identify meiotic cells at metaphase I with a microscope, what would you look for? O a. sister chromatids of a replicated chromosome grouped at the poles O b. individual chromosomes all at the cell's center O c. an uninterrupted spindle array Od. pairs of homologous chromosomes all aligned at the cell's center

QUESTION 5 Bob's hand was exposed to X-rays. A gene in a skin cell of his hand was mutated. This mutated gene will: definitely cause skin cancer replicate itself and be passed on to Bob's children replicate itself when the cell divides, but will not be passed on to Bob's children.

Question 4 Meiosis: 1. Keeps the chromosome number constant generation to generation 2. Ensures that all daughter cells have the diploid number of chromosomes 3. Occurs when cells are cloned

Remaining Time: 43 minutes, 54 seconds. * Question Completion Status: QUESTION 1 One difference between adult and embryonic stem cells is O a. Adult stem cells can become a limited number of cell types while embryonic stem cells can become any cell type b. Adult stem cells are found in embryos while embryonic stem cells are found i adults Oc. There is no difference between embryonic stem cells and adult stem cells Od. Adult stem cells can become any cell type while embryonic stem cells can become a limited number of cell types Ob. Ligase Oc. Ribosomes Od. Reverse transcriptase QUESTION 2 Which of the following is most necessary to make a cDNA library? a. ddNTPs QUESTION 3 1kb = bp For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph v Arial E # $ 3 ۳ 4 E Click Save and Submit to save and submit. Click Save All Answers to save all answers. R Q Search or enter website name **** Gi" ق sex Uakeupfer WORD.COMIS olearn.okan.edu.tr % ^ 50 0 6 1 T 6. MacBook Pro Y 10pt & 7 V…

Question 3 Review 12.1 Cell division. Match the term and its description. Each term can only be used once. The division of the genetic material in the nucleus is termed | Choose ) as The division of the cytoplasm is called [Choose)

The following statements are either accurate as written or contain some errors. You need to rewrite each as an accurate statement. Make sure that you do not change the material the sentence is about. Highlight or underline any changes that you make to statements. Thank you! 1. Cancer is caused by a single mutation in either a tumor suppressor gene or an oncogene. The reason that cancer rates increase with age is because our immune system is better at fighting mutations.  2. Pluripotent is the term used for cells that have already differentiated into all cell types within an organism. 3. Phenotypic variance is partitioned into genetic variance and additive variance. This also indicates that the amount of variance in the phenotype of individuals with the same genotype is solely based on heritability values.

Question Completion Status: A Moving to another question will save this response. Question 11 "If a DNA molecule has 12% thymine, how much guanine will it have?" 12% 24% 38% 76% A Moving to another question will save this response. MAR 16 étv

answer all Directions: Read each statement carefully. Choose the letter of the correct answer. Write your answer on your answer sheet. _____1. In this type of cell division, the nucleus of the cell divides into two (2) nuclei with identical genetic material. What type of cell division is this? a. Meiosis c. Cell Cycle b. Mitosis d. Interphase _____2. In what stage of the cell cycle does DNA replication occurs? a. M-Phase c. Growth or Gap 1 b. Synthesis d. Growth or Gap 2 _____3. What type of cell division is used to produce sex cells, such as egg and sperm cells? a. Meiosis c. Cell Cycle b. Mitosis d. Interphase _____4. Which of the following events happen during Interphase? a. Cytokinesis c. DNA Replication b. Spindle formation d. Alignment of Chromosomes _____5. What is the correct sequence of the phases of Mitosis? a. Prophase → Metaphase → Telophase → Anaphase b. Prophase → Anaphase → Metaphase → Telophase c. Prophase → Metaphase → Anaphase → Telophase…

Question 1 GO describes a phase where cells are "resting", and are essentially outside of the cell cycle. They are not preparing to divide (interphase), nor are dividing. Gnomes are a diploid species with 2n = 4. In adult gnomes cardiac muscle cells are permanently in the GO phase. You are preparing a presentation for class on gnome cardiac muscle cells. You have drawn a diagram (see attached file for image*) of the nucleus in a cardiac muscle cell showing the gnome genome. In your drawing there are four 'X'-like shapes, all of which are different sizes. When you receive the marks for your presentation, you've lost marks for your diagram of the gnome genome, as it was inaccurate. Why was your drawing wrong? X 18 Gnome cardiac muscle cell nucleus

UPVOTE WILL BE GIVEN! ANSWER IN 3-5 PARAGRAPHS (TYPEWRITTEN) a. What are the applications of modern biology in biotechnology? b. What are the implications of these applications? c. How do you think these applications will change the world in the future?

Question 7 Which statement about the use of a suffix in a medical term is correct? OIt is placed at the beginning of a word. It is the main part of the word. OIt is placed at the end of a word. It is a shortened form of a word or phrase.

Question 15 Cell differentiation in most animals results in O The building of the many tissues of the body O Three body layers O All of the above O The formation of endoderm, mesoderm and ectoderm tissues O Cells shutting some gene books and opening others

Question 14 The scientist (scientists) who used enzyme-digesting proteins to show that protein was not the genetic information transferred by bacteria is/are: Question 15 What is the role of mRNA? Question 16 The site on homologous chromosomes where crossing over occurs are called ___ Centromeres Chiasmata Kinetochores Spindle fibers

O e. Penetrance QUESTION 10 Sickle-cell anemia is a human disorder caused by a recessive allele (HbS) for the hemoglobin gene found on chromosome #11. The normal allele (HbA) is dominant. Mary has sickle-cell anemia, and she marries Steve, who does not have the disease. Mary and Steve have one kid Rosa, who has sickle-cell anemia. What is Steve's genotype? Oa. HbS Ob. HbSHbS O c. HbAHbS O d. HbAHbA Oe. Cannot be determined ck Save and Submit to save and submit. Click Save All Answers to save all answers. 7 20 # 3 $ 4 % 5 MacBook Air

QUESTION 11 A child presents a clinical indication of chronic pneumonia, low weight, persistent cough and thick mucus associated with cystic fibrosis (CF). Their older sibling has recurring sinusitis but their younger sibling and both parents are asymptomatic. Genetic testing reveals everyone in the family has several mutations on chromosome 7 where the CFTR gene is located. What explains the differences in phenotype severity observed in this family? The CFTR gene is pleiotrophic, and disease severity is determined by the recessive alleles inherited The CFTR gene is an example of incomplete dominance CF is a polygenic inherited disease, and disease severity is determined by the recessive alleles inherited CF is a polygenic inherited disease, and disease severity is determined by the dominant alleles inherited The CFTR gene is pleiotrophic, and disease severity is determined by the dominant alleles inherited

Question 8 Protein synthesis is also known as Blank 1 Blank 1 Add your answer