4. You have been studying a trait that seems to be present in every generation within a particular family. Further, you have observed that every affected offspring has at wor least affected parent in any particular generation. bas berswoll wollsy nog wohl di lozin a) This trait is more likely due to a dominant or recessive allele? to vas of otsige smesno vns el role b) Interestingly, this allele is completely penetrant in the homozygous state while only 75% penetrant in the heterozygous condition. If two heterozygous individuals who carry this allele are mated, what is the expected proportion of affected progeny?

2. In the following types of matings, the phenotypes of the parents are listed together with the frequencies of phenotypes occurring among their offspring. Indicate the genotype of each parent (you may need to use testcrossesl). Parents Offspring I B:0 을 A: 을B 을 AB : B: A: 0 를 AB : 를 A a. Вx В Ь. Ох АВ Ox AB Bx A d. Bx A C. TV Sex Lin ko

5. The gene controlling the human ABO blood group system has three alleles that determine the nature of the antigens on the membranes of red cells. Allele lª codes for the production of antigen A on the surface of red blood cells. Allele IB codes for the production of antigen B on the surface of red blood cells. Allele lº does not code for any antigens on the surface of red blood cells. Alleles IA and IB are co-dominant and both alleles are dominant over lº a. Use this information to determine the possible genotypes, antigens and blood group phenotypes within a population. Genotype Antigen(s) Blood Group Phenotype

In one General Biology 2 class, there were 51% of the students whocould roll their tongue, having either genotype RR or Rr. What is thefrequency of the r allele?

10 11012 130 14 150 30 170 19C U 2.EVC syndrome O 3. All of the above QUESTION 5 What is the difference between a phenotype and a genotype? O 1.A phenotype is the set of genes an organism carries, a genotype is the organism's observable characteristics O 2. A phenotype is the organism's observable characteristics, a genotype is the set of genes an organism carries QUESTION 6 On a Punnett Square, which combination shows heterozygous alleles? O 1. BB O 2. bb O 3. Bb Click Save and Submit to save and submit. Click Save All Answers to save all answers. 44°F Mostly c の f1 fi0 fe t9 144 f7 1- fs 10 米 & 6. 8. 3. 4 近 %24

Which one of the following disordens does not follow a AtHuntin recessive inheritanie puttern? g ton Disease Iketonuria B. -pheny c-Tay - Sachs disease D- D7eystic fibrosis E- hemophilia

Red-green color blindness is an X-linked recessive trait. Heterozygous females have normal color vision but are carriers of the allele for red-green color blindness. I O2 II 10 III 12 O14 15 O18 J13 16 19 20 21 2324 25 IV 26 On 28 20 30 31 32 33 34 35 36 37 Based on the information presented in the pedigree, select all of the females that are known carriers of red-green color blindness. 24

SC.7.L.16.2 The pedigree below shows the inheritance pattern of a recessive allele (z) that results in a genetic disease. 1 O O ОТДОП 3 4 5 6 7 2 Based on the inheritance pattern, what are all the possible genotypes for individual 6? ZZ and zz ZZ and Zz Zz ZZ, Zz, and zz 1 point Affected Male Affected Female Unaffected Male Unaffected Female --D

5. For each of the following pedigrees, indicate whether the pattern of inheritance is recessive or dominant. 3 4 1 %3D II 4 6. 7 2 5 6 8. 10 11 III 2 3 IV 1 2 3 4 6 7 8

An autosomal recessive disease affects /200 dogs and the population is in Hardy-weinlerg. a) what propornon of he poulanon are cauners for the disease? b) A carrrer dog and an unknown dog are randomy sevectedfrom the popuaron and thay have one offipring, what is the fosioi'ing the oříspring is a carrier for he disease?