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.
Q: QUESTION 31 Put the steps of the cell cycle in order beginning with "start" or the "restriction…
A: Cell cycle is generally represented by the following four phases: 1. The starting phase which is the…
Q: Question 20 Fruit fly embryos, show superficial cleavage, where the peripheral nuclei in a syncytial…
A: Introduction Drosophila melanogaster is a species of fly which is also known as the fruit fly, the…
Q: Question 37 DNA is duplicated during: A) anaphase B) prophase C) S phase of interphase D) telophase…
A: DNA duplication In the context of genomics, duplication is a form of mutation in which one or more…
Q: Question 29 Operator is not bound with the repressor Ó Gene is switched ON O Gene is switched OFF O…
A: Operon An operon is a part of genetic material or DNA, which acts as a single regulated unit having…
Q: QUESTION 19 What chromosomes belong to a normal human male? O 22 autosomes and two Y chromosomes O…
A: Chromosome number vary among different species. It's not constant.
Q: QUESTION 3 Nondisjunction is rare. Which of the following is FALSE? O A. Nondisjunction is when…
A: Proper separation or segregation of the sister chromatids or homologous chromosomes is essential for…
Q: QUESTION 1 The picture below represents a G1 cell from a newly discovered species that uses the X/Y…
A: Crossing over increases genetic diversity.
Q: QUESTION 10 Click directly on the chromosomal location named 2q22. You can click on either…
A:
Q: Question 81 What process ensures a new indiv Meiosis
A: A parent cell divides into two or more daughter cells in the course of cell division. Normally, cell…
Q: QUESTION 22 Mutations in p53 and Rb are found in a majority of cancers. What type of mutations are…
A: In cancer, normal cells are continuously changed into tumor or cancerous cells by a series of…
Q: Question 20 Which of the following statements regarding nondisjonction is incorrect? 1. could result…
A: # Non disjunction results in an extra chromosome in one of gamete and one less chromosome. Hence :…
Q: QUESTION 10 If mitosis produced gametes in sexually reproducing organisms, then: chromosome number…
A: Q10. Usually, it’s done by meiosis, if it were to happen by mitosis each gamete will be a diploid.…
Q: Which of the following occurs during meiosis in eukaryotic spermatogonia? A. One diploid cell…
A: Spermatogenesis is the developmental process of haploid spermatozoa or spermatid (gametes) formation…
Q: Chromosomes are said to be homologous when : 1. they carry the genes for the same traits 2. they are…
A: Chromosomes are the condensed form of the chromatin. This condensation usually takes place in the…
Q: QUESTION 23 I II III IV V VI Figure 10.2 Refer to the drawings in Figure 10.2 of a single pair of…
A: Anaphase is the stage where homologous chromosome separation starts.
Q: QUESTION 47 Why is mitochondrial DNA inherited only from mothers and not fathers? Mitochondria are…
A: They have their own DNA which is similar to bacterial DNA. They have ribosomes, enzymes and…
Q: Question 6 What phase of mitosis is pictured? A O prophase prometaphase metaphase O anaphase O…
A: Answer 1- the mitosis phase which is shown in diagram is : anaphase. anaphase is the stage in…
Q: QUESTION 5 that happens in In addition to DNA swapping, another contributor to the uniqueness of…
A: For a given population, there are three sources of variation: mutation, recombination, and…
Q: Question 7 Review meiosis. If a cell has 24 chromosomes, after meiosis I, how many chromosomes are…
A:
Q: Question 18 In snapdragons, red x white> pink. What proportion of pink flowers are expected from the…
A: This case is an example of incomplete dominance. Suppose the allele is R (dominant) and…
Q: Question 3: A woman suffers from albinism and is also a carrier for haemophilia. Draw a well-…
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Q: The quail somites transplanted in a conventional order were able to develop normally in the chick…
A: Induction is the process by which the presence of one tissue influences the development of others.…
Q: QUESTION 11 Which of the following is FALSE about mitotic cell division? Some cells repair and…
A: The cell is the basic structural and functional unit of the body. It is responsible for various…
Q: Question 1. (a) Name the following : | (i) The layer of the eyeball that provide nourishment to the…
A: The ozone layer is a layer that can be found in the stratosphere. It is capable of absorbing the…
Q: Question 11 What is the color of kernels with CCRRPPYY geneotye? O Yellow O White Red O Purple
A: The genotype is defined as the organism's set or collection of genes. These gens can be transferred…
Q: QUESTION 3 Watson is and Crick was O American, British O British, American O American, American O…
A: Watson and Crick are both known for their model of DNA. the DNA was defined by them as the double…
Q: QUESTION 6 Each meiosis results in usable eggs in females and usable sperm in males. O A. 1; 1 ОВ 4,…
A: Meiosis is a cell division used to produce gametes (sperm or egg cells), in sexually reproducing…
Q: QUESTION 11 Which of the following is FALSE about mitotic cell division? OA Some cells repair and…
A: Mitosis is the division of a single cell into two daughter cells that are similar. It is the process…
Q: QUESTION 2 Which of the following is NOT an example of when or where you would find mitotic cell…
A: Mitosis the the cell division in which replicated chromosomes are divided into two nuclei.Mitosis…
Q: QUESTION 9 Platelet-derived growth factor (PDGF) is a mitogen that activates tyrosine kinase…
A: *Platelet derived growth factor (PDGF) is activator for cells which are mesenchymal in origin and…
Q: QUESTION 5 For an animal with a diploid genome that contains 36 pg of DNA, the nucleus of a somatic…
A: Cell cycle is the sequence of events taking place for the development and the growth of cell leading…
Q: QUESTION 8 The fertilized egg is called a zygote, and is considered the ultimate stem cell. True…
A: The fertilized egg is known as zygote. When a sperm fertilizes egg it becomes zygote. Scientists…
Q: Question 1. (a) Name the following : (i) The layer of the eyeball that provide nourishment to the…
A: (i) Choroid
Q: Question 23 You are caring for a patient with pancreatic adenocarcinoma. The cancer originated from…
A: Most of pancreatic tumors are highly malignant rapid growing adenocarcinoma originating from the…
Q: QUESTION 13 The phenomenon by which an allele containing a deletion in a tumor suppressor gene…
A: Introduction :- A tumour suppressor gene produces a protein that controls cell division by…
Q: QUESTION 21 Double fertilization involves 2 fertilizations, write the cells/nuclei involved with…
A: Fertilization 1:- First Male gamete, with ploidy level of n + egg cell with ploidy level of n =…
Q: Question 6. Which of the following is a difference between mitosis and meiosis? a. Mitosis occurs in…
A: Mitosis is the equational division resulting in the formation of daughter nuclei that are exactly…
Q: QUESTION 1 If plant cells had the following % of their cells in these stages of mitotic cell…
A: NOTE: AS PER OUR GUIDELINES, WE ARE ONLY ALLOWED TO ANSWER FIRST QUESTION, PLEASE RESUBMIT THE OTHER…
Q: QUESTION 8 Match the stages of mitotic cell division to the descriptions of those stages. v…
A: Mitosis is a process where a single cell divides into two identical daughter cells. It consists of…
Q: QUESTION 28 The flies in the figure are mated. Which chromosomes would have the highest frequency in…
A: A breeding experiment among two animals that are exactly hybrid for two features is referred to as a…
Q: Question 3. In a cell that has been arrested prior to metaphase due to a single unaligned…
A: Kinetochores contain the Mad2 protein.
Q: QUESTION 16 Independent assortment of chromosomes is a result of: The random and independent way in…
A: Independent assortment is one of the mendelian law. Mendle's law of Independent assortment occurs in…
Q: Choices for Question 1, 2, 3, 4, 5 A. Mitosis- Metaphase B. Mitosis - Prophase C. Meiosis-Prophase I…
A: Answer 1- nuclear envelope is intact and encloses the nucleus : mitosis - telophase Answer 2-…
Q: Question 64 The cell formed through fertilization of an egg by a sperm is called a/an O zygote. O…
A:
Q: QUESTION 7 Match the stage of mitotic cell division with its description. chromosomes line up in the…
A: (As you have asked multiple question, we will solve the first question for you. If you want any…
Q: Question 44 Choose the answer that correctly matches the terms and statements below: 1. Cells of…
A: Cell is the basic structural and functional unit of life.
Q: Question 3. In a cell that has been arrested prior to metaphase due to a single unaligned…
A: Introduction :- Metaphase is the second-most compacted and coiled stage of mitosis in the eukaryotic…
Q: QUESTION 27 If the cell population cell number remains constant 1 x 106 cells in a tisue and you…
A: Stem cells are self renewing cells which give rise to differentiated cell and a stem cell again on…
Q: QUESTION 9 During metaphase II of meiosis, O pairs of homologues chromosomes line up in the centre O…
A: (As per our guidelines, we are required to answer only the first question in case multiple questions…
Q: QUESTION 13 Select the factor that associates with the rapidly growing plus ends and dissociates…
A: These are microscopic hollow tubes made of the proteins alpha and beta tubulin that are part of…
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- Question 16 Which event may lead to cancer? Select all that apply. gene mutation functioning p53 protein Rb protein phosphorylating Improper replication of DNA during synthesis faulty DNA repairD Question 3 et Two pure breeding lines of pea are crossed. One is purple-flowered and tall, the other white- flowered and short. The F1 is purple-flowered and tall. Crossing the F1 to the white and short parent results in phenotypic and genotypic classes. O 4,2 O 3, 4 O 2,2 O 4,4 O 24Question 60 What are oncogenes? specific to males mutated variants of genes that code for cell division tumor suppressor genes genes that code for proteins which stop the cell cycle Question 61 Homologous chromosomes undergo recombination during prophase II. metaphase I. metaphase II. both prophase I and II. prophase I. Question 62 List three alterations that occur before mRNA leaves the nucleus for translation. Question 63 Webbing of digits (fingers) in humans, or syndactyly, typically occurs during the sixth to eighth weeks of embryonic life. One of every 2000–2500 births have syndactyly, and it is more common among Caucasian males. Syndactyly is caused by the failure of what process? cell division mitosis cytokinesis apoptosis Question 64 Arrange the following structures in order from smallest to largest? Gene, chromosome, genome, nucleotide Question 65 Which of the following is FALSE about telomeres? telomeres are repeats of a specific DNA sequence telomeres shorten…
- O Tumors of the blood A tumor with limited growth Explain why radiation and 5-fluorouracil are effective cancer treatments. Please include a few sentences about how these treatments interact with the cell cycle. Your answer Any comments please use this space (e.g. to clarify an answer or point o issues on questions, etc.)Please answer fast and all question other wise I will give downvote. QUESTION 1 Why is cancer a disease of old age ? A. Older DNA is more easily damaged B. There are fewer stem cells to repair tissue in older people C. DNA mutations accumulate with age QUESTION 2 The frequency of this molecular change in cancer cells makes it readily detectable by liquid biopsy. A. Point mutations B. Gene amplification C. DNA methylation D. PSA antigen QUESTION 3 Can surgery (with conventional chemotherapy if necessary) ever cure cancer? A. Yes, but typically only when cancer is detected at an early stage B. No, it simply prolongs life, usually by a few months C. Yes, even advanced cancer can frequently be cured by chemotherapy D. Only when it is combined with a targeted therapyQuestion 1. The picture below represents a karyotype from the lymphocytes of a child with developmental abnormalities. 11 2² 35 K K 13 19 14 20 15 21 22 16 10 b. What is unusual in this karyotype? 17 it X a. Is the child male or female? Explain your answer. 18 c. What is the name of the specific disease associated to this chromosomal abnormality? d. Briefly explain why genetic alterations like the one above may cause developmental abnormalities.
- Question 7 This is an example of Orthologous genes. Ancestral globin gene α mes Bl Gy Ay VB 8 B a-Globin gene family on chromosome 16 B-Globin gene family on chromosome 11 O True O FalseQuestion 10 Excess exposure to the sun can lead to skin cancer due to mutations in the DNA of your skin cells. Which of the following explains why this type of cancer cannot be inherited by the offspring of someone with skin cancer? A The mutation occurred in gametes The mutation occurred due to the environment The mutation occurred in somatic cells O The mutation occurred before fertilizationQuestion 49 The scientist(s) who showed that DNA contained equal amount of certain nitrogen bases (i.e., A=T and C=G) is (are): Question 50 The cell that starts meiosis I is: haploid diploid a somatic cell a gamete Question 51 What is “silent” mutation? Question 52 Where does mitosis occur within this figure? (see letters in boxes) A B C D C and D Question 53 What form of chromosome abnormality is shown in the following Figure? Question 54 What type of mutation causes Sickle cell anemia? Question 55 The order of nucleotide bases on two sides of a DNA double-helix is Identical Similar Complemetary Nonidentical Question 56 What types of mutations are NOT passed to future generations? Question 57 What enzyme copies DNA into RNA? Question 58 Meiotic cell division replicates a cell's DNA ____________ and then divides ______________ twice; twice. once; once. None of the answer choices are correct. twice; once. once; twice. Question 59 ____ divide during meiosis I, while…
- QUESTION 13 The phenomenon by which an allele containing a deletion in a tumor suppressor gene causes a good copy of the gene carried on the other allele to undergo deletion is an example of A. Penetrance OB. Chromatid dysjunction O C. Loss of heterozygosity O D. Allelic exclusion O E. Chromosomal translocationQuestion 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 othersQUESTION 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