Answer the following questions based on the following karyotype shown. Write TRUE if the statement is correct. Write FALSE if the statement is false and provide the correct answer.
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- Answer the following: 1. What sex chromosome combination does a female have? 2. What sex chromosome combination does a male have?, 3. How many chromosomes are in normal human cells? Use the internet to define karyotype: Karyotype - The pictures below show normal (all 46 non-damaged chromosomes) }} 88 31 10 71 al X X X X 46,XX id ZWK99010 KEY 28 20 38 21 AC 11 RR 16 8.8 22 10 17 X 11 Female Karyotype (2 X chromosomes) Male Karyotype (XY chromosomes) Why would scientists use karyotypes? Scientists use karyotypes to diagnose genetic disorders. A karyotype can show if there are extra, missing, or structurally damaged chromosomes. Predict: What could cause someone to have missing or damaged chromosomes?3 (Lecture 13 Study Guide, Question #10) Genetic traits on the X-chromosome are called X-linked. Some X-linked conditions are referred to as X-linked dominant, such as Fragile X Syndrome. Consider the following genetic cross: A father with Fragile X Syndrome and a mother with normal phenotype. Perform a Punnett Square. Select the possible genotypes of their offspring below. xFxf xFYHow many total chromosomes were on your karyotype sheets? How many of the chromosomes are autosomes? Is this child a male or a female? How do you know? Does this child appear to have a genetic disorder? If so, what genetic disorder does this child have? ( DID I DO THIS CORRECTLY I THINK ITS ) 1. 47 CHROMOSOMES 2. 44 ARE AUTOSOMES 3. MALE HAS A Y CHROMOSOME 4. YES, HAS EXTRA Y CHROMOSOME AND THE GENETIC DISORDER IS XYY SYNDROME
- In fruit flies, the color of the eyes is sex linked (on the X chromosome). Complete the cross of the flies in the image to determine the possible offspring produced. Red eyes are dominant (R), White eyes are recessive (r). What percentage of the male offspring are expected to have red eyes? XR Y O a 100% O b 75% 50% Od 25% e 0% Saved at 11:42 am Review Answers JPQuestion 3: If a karyotypically normal egg was to be fertilized by a sperm from question 1, what are the possible offspring haploid numbers? Select all correct answers. A: 2n=46 B: 2n=47 (XXY) C: 2n=47 (XYY) D: 2n=45 (X) E: 2n=45 (Y) F: 2n=47 (XXX)These pictures represent cells in 2 different phases of meiosis. What are the differences between these 2 cells? Select all correct statements. Group of answer choices 1.in one the sister chromatids are still attached, in the other they are not. 2. following 1, you will get haploid cells but following the other you will still have diploid cells 3. 1 contains homologous pairs the other does not 4. 1 is in anaphase and 1 in metaphase 5. in 1, homologous chromosomes are being pulled apart, in the other sister chromatids are being pulled apart
- My Question is what is the probability their first child will have hemophilia and drawn pedigrees for family members with genotypes. My explantion so far: A man has both X and Y chromosomes as sex chromosomes in his body. Here, though the brother of the man is hemophiliac, a man can’t be a carrier of hemophilia. So, it can be said that his chromosome is “XnY”.Here, the “n” stands for “normal”.Though the paternal uncle is hemophiliac, a man cannot be a carrier of hemophilia, his niece will not be a career. So it can be said that the woman is also not a carrier and has the “XnX” chromosome.So, as the mother is not a carrier, their first child does not have a chance of having hemophilia. This can be determined as it is known that there is no hidden carrier of hemophilia in the family.Question 1 What are the haploid genotypes of the gametes and frequencies/proportions of those gametes that can be formed in individuals of each of the following diploid genotypes? (DON’T do a cross. Just predict the different haploid gamete genotypes that could be produced by each diploid genotype below.) Proportions can be expressed in ratio form or fractional form. Dd Ee ff GG Mm Nn Rr ZZQuestion 28 For the statement below tell which from the list below applies 1. meiosis 2. mitosis 3. neither mitosis nor meiosis 4. both mitosis and meiosis Homologous chromosomes are 100% identical to each other O 3 O 1 O 2 O 4 PRINECOMA3_...pptx MacBook Air DII 80 F2 F3 F4 F5 F6 F7 F8 23 24 & 4 5 6. 7 8.
- 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 ху Match the chromosome to its homologous chromosome. After all the matches are complete you will analyze your patient. 1. How many total chromosomes are in your karyotype-count them 2. What sex chromosomes does your patient haveLet us practice it again! Analyze the pedigree below to answer the questions that follow. Huntington's disease a disorder in which nerve cells waste away, or disintegrate, is passed down through families. certain parts of the brain Huntington's diseate llustration ereated in htps://pregenygenetion.com/ 1. What members of the family above are affected with the Huntington's disease? 2. Tnere are no carriers ior Huntungton's disease you either have it or you do not. Is Huntington's disease caused-by a dominant or recessive trait? 3. Identify the genotypes of the following individuals using the pedigree above. (homozygous dominant, homozygous recessive, heterozygous). I- 1 II -1: II -3: III - 4 : 4. How many children did individuals I-1 and I-2 have? 5. How many girls did II-1 and II-2 have? How many have Huntington's Disease? 6. How are individuals III-2 and II-4 related? I-2 and III-5?IV. Observation: No Crossing Over Crossing Over Appearance of Gamete Cells Appearance of Gamete Cells V. Analysis: 1. If the two sister chromatids are the same, how are they called? 2. Which specific parts exchanged genetic information during cross over? 3. What is crossing over? 4. When will crossing over occurs? Why? 5. What will happen after crossing over? 6. How do meiosis contributes to genetic variation, while mitosis does not? 7. Why is crossing over important for evolution of species?