Amoeba sisters video recap alleles and genes answer key

Amoeba Sisters Video Recap: “Sex-Linked Traits” Below is a picture of a human karyotype. 1. Place numbers by each chromosome pair. How many chromosome pairs are there? __________ 2. How many chromosomes in total are there? ___________ 3. Circle the sex chromosomes. How many sex chromosomes are there? ____________ 4. Is this individual a male or female? ______________________ 5. How were you able to determine your answer for #4? ___________________________________________________________________________________ ___________________________________________________________________________________ 6. Color blindness is a sex-linked recessive disorder on the X chromosome. If the allele “b” is used to denote color blindness, circle the genotype(s) that correctly represent(s) a female that is color blind. BB Bb bb XBXB XBYB XBXb XbY XbXb XbYb XB Y 7. Color blindness is a sex-linked recessive disorder on the X chromosome. If the allele “b” is used to denote color blindness, circle the genotype(s) that correctly represent(s) a male that is color blind. BB Bb bb XBXB XBYB XBXb XbY XbXb XbYb XB Y Sex-Linked Punnett Square Practice! 8. Bob is color blind, but he knows that neither of his parents were color blind. He is wondering if he received the gene for color blindness from his mother, his father, or both of his parents. What would you tell Bob? Show a Punnett square to prove your answer! 9. Consider the below Punnett square cross. Explain how you could use it to determine which parent determines the biological sex of a baby---is it the mother, father, or both? Why? 10. In the video example, the sex-linked disorder was a recessive trait. However, sex-linked disorders can be dominant! (Conduct a search to see some of the sex-linked dominant disorders that exist). Sexlinked dominant disorders will show even if there is only one dominant allele present. Using the allele D to stand for a dominant sex-linked trait, show a cross with a woman who does not have a dominant sex-linked disorder (XdXd) with a man that does. Will the disorder in this particular cross be more common in daughters or sons? AMOEBA SISTERS: VIDEO RECAP MULTIPLE ALLELES (BLOOD TYPES) Amoeba Sisters Video Recap: Multiple Alleles (ABO Blood Types) and Punnett Squares For the following boxes, fill in the below information regarding each blood type. Blood Type A Blood Type B 1. Phenotype: __________________________ 4. Phenotype: __________________________ 2. Possible Genotype(s): ___________________ 5. Possible Genotype(s): ___________________ ________________________________________ 3. If the A type red blood cell below has any blood type antigens on its surface, please draw them below and label. If not, leave blank. ________________________________________ 6. If the B type red blood cell below has any blood type antigens on its surface, please draw them below and label. If not, leave blank. Blood Type AB Blood Type O 7. Phenotype: __________________________ 10. Phenotype: __________________________ 8. Possible Genotype(s): ___________________ 11. Possible Genotype(s): __________________ ________________________________________ 9. If the AB type red blood cell below has any blood type antigens on its surface, please draw them below and label. If not, leave blank. ________________________________________ 12. If the O type red blood cell below has any blood type antigens on its surface, please draw them below and label. If not, leave blank. AMOEBA SISTERS: VIDEO RECAP MULTIPLE ALLELES (BLOOD TYPES) Name Those Parents: Hospitals typically have excellent measures in place to prevent mix-ups, but one baby was not so lucky. The hospital has narrowed down that baby Anthony must belong to one female and one male in the below list,