4. Hemophilia in cats is X-linked recessive. (And yes, cats' sex chromosomes work the same way peoples' do.) A carrier lady cat marries a hemophilic man cat. a) Draw a Punnett square showing this, and showing offspring genders and genotypes. Hint: you must draw the correct type of Punnett square for an x-linked problem to get the right answer. b) What fraction of their boy kittens will be hemophilic? c) What fraction of their girl kittens will be hemophilic? d) What fraction of all their kittens will be hemophilic? e) A daughter from this marriage grows up and gets married to a hemophilic tomcat. All of their kids are hemophilic. What was the genotype of the daughter?

In humans, the recessive allele that causes a form of red-green colour blindness (c) is found on the X chromosome. a.) Determine the genotypes and phenotypes of the F1 generation from a colour-blind father and a mother who is homozygous for normal colour vision. b.) Determine the genotypes and phenotypes of the F1 generation from a father who has normal colour vision and a mother who is heterozygous for colour vision. c.) Draw a Punnett square to determine the genotypes of parents that could produce a daughter who is colour-blind

Explain this to me…..

Smaug (The Chiefest and Greatest of Calamities, The Unassessably Wealthy, The Stupendous, etc.), is the dragon who lords over the Lonely Mountain in J.R.R. Tolkien's The Hobbit. He is described with the following phenotypes: Reddish-golden scales Batlike wings Fire breathing Let's assume the following inheritance models are true for the dragon phenotypes observed: Phenotype Scale Color Wing Shape Fire Breathing Alleles R¹ (Red scales), R² (Gold scales) X¹ (Bat-like, Dominant), Xi (Insect-like, Recessive) F (Fire breathing), f (unable to create fire) Inheritance Model Incomplete dominance X-linked allele Mendelian

5. The pedigree below traces the inheritance of Albinism, a genetic disorder. Affected individuals, indicated here by the coloured circles and squares, are unable to make a normal amount of melanin, the chemical that is responsible for eye, skin, and hair colour. Does Albinism appear to be caused by a dominant allele or by a recessive allele? Fill in the genotypes of the individuals whose genotypes can be deduced. What genotypes are possible for each of the other individuals? Explain! Naruto Hinata Reiner Asta Hange Mikasa Eren Historia Luffy Nezuko Zenitsu Tanjiro Son Goku

6. There are two enzymes LDH1 and LDH2. The gene that encodes this enzyme is X-linked. You extract the enzyme from different cells in several people and carry out electrophoresis. Give the genotypes for each person Draw the banding pattern that you would expect in the gel. Male with Male with Female Female Heterozygous LDH1 gene homozygous female LDH2 homozygous for LDH2 for LDH1

Color blindness in humans is an X-linked recessive trait. This means that... O a. Females are more likely to be color blind than males b. The gene associated with color blindness is found on the X chromosome, and an individual must have one (in males) or two (in females) mutant copies of the allele in order to be diagnosed as being color blind