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"Polyploidy is the chromosome increases in the form of multiples of the haploid number.”
TRUE OR FALSE
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- URGENT 2. Compare an autotetraploid and an allotetraploid to each other with respect to the characteristics listed below. Answer auto, allo, both or neither for each statement. a) Fully fertile.b) Originated from 2 different ancestral diploid species.c) Contains 4 homologous copies of every chromosome.d) Balanced and unbalanced gametes can form.Match the letter of the term with its description. Centriole Chromosome Chromatid Diploid DNA Gene Haploid Description makes spindle fibers is the hereditary material in chromosomes a cell containing two complete sets of chromosomes a cell containing a single set of unpaired chromosomes code for a specific trait (e.g. ability to roll the tongue) one of a pair of identical chromosomes formed by the replication of a single chromosome any of several thread-like structures, made of chromatinWrite True or False 1. In prophase of mitosis the chromosomes condense in y sharp structure that can be easily seen under microscope 2. In interphase stage of mitosis a membrane forms around each set of chromosomes to create two new nuclei 3. In interphase l of meiosis, the paired chromosomes line up 4. In prophase ll of meiosis, it is visibly obvious that replication has not occurred 5. In telophase l of meiosis, the cell pinches and divides 6. Homologous chromosomes contain the unmatched alleles donated from mother and father 7. In anaphase of mitosis, the sister chromatids are pulled apart by the mitotic spindle which pulls one chromatid to one pole and the chromatid opposite pole 8.At the end of the prophase in mitosis, the membrane around the nucleus in the cell dissolves away releasing the chromosomes. 9.During interphase in mitosis, microtubules extend from centrosomes. 10.If not corrected in time, mistakes made during mitosis can result changes in DNA but will not lead to…
- Help Save & Exit Submi Complete the following sentences using the correct terms to describe the key tenets of the chromosomal theory of inheritance haploid 1. Chromosomes contain the genetic material that is transmitted from parent to offspring and from cell to cell. mitochondria genetic material 2. Chromosomes are replicated and passed along, generation after generation, from parent to offspring. They are also passed from cell to cell during the of a multicellular organism. Each type of chromosome retains its individuality during cell division and gamete formation. inflammation enzymes 3. The nuclei of most eukaryotic cells contain chromosomes that are found in homologous pairs-they are from each parent. At meiosis, one of the two members of each pair segregates into one daughter nucleus, and the homolog segregates into the other daughter nucleus. Gametes contain one set of chromosomes-they are One member of each pair is inherited independently of development 4. During the formation…Font FUNGAL AND SEX LINKAGE 1. An a b Neurospora was crossed with an + + form. Meiosis occurred and 1000 asci were dissected. What is the distance of gene a from the centromere? What is the distance of gene b from the centromere? What is the distance between gene a and gene b? Draw a genetic map for the two genes, indicating the position of the centromere. NO. OF ASCI 700 ab ab ab ab 十+ 十+ ++ 十+ a+ a+ a+ a+ +b +b +b +b 190 ab ab a+ a+ 十+ 十+ +b +b 90 ab ab +b +b 十+ ++ a+ a+ ab ab 十+ 十+ ++ 十+ ab ab a+ a+ +b +b +b +b a+ a+ 10 ab ab ++ ++ +b +b a+ a+Name Date Period # Set B Set A 話 Follow-up Questions: 1. How many chromosomes in a normal human karyotype? 46 chronmosomes. 2. How many autosomes in a normal human karyotype? 22 autosomes 3. What are gametes? Gametes are the reproductive cells in an organism, also referred to as sex cells. 4. How many sex chromosomes in a normal human karyotype? 46 chromosomes 5. What are the sex chromosomes in a male, and what are they in a female? Males have XY sex chremosomes and females have XX scx chomosomes. 6. What is trisomy? Tristomy is a conditionn that refers to the prescnce of an extra chromosome within the cell. 7. In the karyotypes you just completed, how many chromosomes did the individuals have? Patient A 41 chromosomes Patient B 47 chromosomes 8. What chromosomal disorder or syndrome, if any, did you diagnose the individuals as having? Patient A has Trisomy of 12 chromasame Patient B has an X chromesome and will have Klinefelter syndrome 9. How did the individuals obtain the extra…
- mat Arrange Tools Slide Show Window Help A 12% D Sat 2:02 PM 2 Chapter 13 clicker questions imations Slide Show Review View Shape Format O Tell me e Share V Play Narrations Always Use Subtitles V Use Timings Rehearse Record Timings Slide Show V Show Media Controls A Subtitle Settings v What allows sister chromatids to finally separate, and in which phase of meiosis does this occur? a) release of cohesin along sister chromatid arms in anaphase I b) crossing over of chromatids in prophase I c) release of ohesin at centromeres in anaphase I d) release of cohesin at centromeres in anaphase II e) crossing over of homologs in prophase I O 2017 Pearson Education, Inc 103% :: E Notes Comments étv MacBook Pro 80 888 * ( & $ 8 9 6 7Z File Arial Home 12 8 Type here to search Insert S W X Draw B I U ab 13 #3 3 LLJ Layout E C Review f4 D S X₂ R View O E LL x² 15 Task 6 V AAEEEE A) (1) What types of cells are produced by meiosis and mitosis? C 5 (DJ ACTUAL (c) Why is the curve at A - B steeper than the THEORETICAL line? de in (ii) Explain the significance of the difference in the number of chromosomes. (i) What are the possible uses of the cells produced from mitosis and meiosis? f6 D T G The Cell Assignmen: 22.23 - Saved 6 B 17 Y H W & 7 18 hp 7 N U 19 0 8 4 u M 10 9 Heading 1 15 K ä (A.C.2.3) F11 Heading 2 112 Mahammac Zawia Normal 9 C 7°C Mostly cloudy ^940) scroll diam 19 pause brick Share 12:00 AM 11/24/2022 insert backspace I Ę₂Picture name - Tradescantia spathacea meiotic cell. HPO (400x)Shown below are photomicrographs of Rhoeo tradescantia cells undergoing meiosis. Answer the following question for each of the photomicrographs: Identify the cytogenetic abnormality observed (ex. ring, chain, laggard, bridge). Identify the meiotic stage in which these aberrations are observed (as shown in the photomicrograph). Explain how these aberrations are formed and relate to the possible causal mutation(s). Will this result to sterile and/or fertile gametes? Explain.
- Is cystic fibrosis a genotypic or phenotypic change? Explain your reasoning. Edit View Insert Format Tools Table, 12pt v Paragraph BIU A 2 T?く10:10 E ← sisAndMeiosis.docx FREE EDIT PDF FREE CONVERT PDF TO WORD 2. Why are chromosomes important? 3. How are meiosis I and meiosis II different? 1. What is the state of DNA at the end of meiosis I? What about at the end of meiosis II? 4. Why do you use non-sister chromatids to demonstrate crossing over? 7. Identify two ways that meiosis contributes to genetic recombination. 10. P FREE PDF FILLER 5. What combination of alleles could result from a crossover between BD and bd chromosomes? 8. Why is it necessary to reduce the number of chromosomes in gametes? 6. How many nuclei are present at the end of meiosis II? How many chromosomes are in each? a. Sperm Cell b. Egg Cell AP_5 c. Daughter Cell from Mitosis ON 5G I 9. Blue whales have 44 chromosomes in every cell. Determine how many chromosomes you would expect to find in the following: d. Daughter Cell from Meiosis II COUS ra PAGE 10... FREE CONVERT JPG TO PDF X OeScience Labs, 2016C B 2089202222 a b d B А. a e The figure above shows images of five different cells. Each box contains an image that represents a cell of an AaBb dihybrid that is in some stage of meiosis or mitosis. The lines represent chromatids. The letters on the lines represent alleles. The shaded region shows the shape of the cell. Refer to this figure as you consider the questions below. Each box contains an image that represents a cell of an AaBb dihybrid that is in some stage of meiosis or mitosis. The lines represent chromatids. The letters on the lines represent alleles. The shaded region shows the shape of the cell. Refer to this figure as you consider the questions below. Each box represents a cell in meiosis or mitosis. The lines represent chromatids. The letters next to the lines represent alleles. The shaded region shows the shape of the cell. The A gene controls an X-linked trait. The B gene controls an autosomal trait. Refer to this figure as you consider questions X-Y below + 8)…
