Using the following information perform following crosses using the forked line and predict all possible phenotypes types of the offspring. List the number and description of the phenotypes of the offspring. 1. aa BB Cc Dd Ee X aa bb Cc Dd EE

Homozygous Dominant First Offspring First Two Offspring Use dihybrid cross to solve the following problems. Genotype НА На hA ha НА НН АА НН Аа Hh AA Hh Аа На НН Аa НН аа Hh Aa Hh aа hA Hh AA Hh Aa hh AA hh Aa ha Hh Aa Hh aa hh Aa hh aa Key: H = long hair h = short hair A = brown a = green What is the probability of having offspring that are homozygous dominant for both traits? O A. 1/16 ОВ. 1/8 о с. 1/4 O D. 1/2 DELL & #3 6. 7 9. * C0

Name: Genetic Crosses that Involve 2 Traits In rabbits, black hair is dominant to brown hair. Also in rabbits, long straight ears are dominant to floppy ears. These letters represent the genotypes and phenotypes of the rabbits: BB = black hair EE = long ears Ee = long ears ee = floppy ears Bb = black hair bb = brown 1. A male rabbit with the genotype BBee is crossed with a female rabbit with the genotype bbEe The square is set up below. Fill it out and determine the phenotypes and proportions in the offspring. How many out of 16 have black hair Be Be Be Be and long ears? How many out of 16 have black hair bE and floppy ears? be How many out of 16 have brown hair and long ears? bE How many out of 16 have brown hair be and floppy ears? 2. Show the cross: GgBb x ggBb How many out of 16 have black hair and long ears? How many out of 16 have black hair and floppy ears? How many out of 16 have brown hair and long ears? How many out of 16 have brown hair and floppy ears?

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Consider the following cross involving three linked genes DeF/dEf x def/def. PHENOTYPES NUMBER OBSERVED DeF 76 def 30 dEf 82 DEF 24 Def 4 DEf 18 dEF 1 deF 15 The gene order is:

Dihydrid Cross

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 JP

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Draw a tree diagram of the cross and determine all possible offspring genotypes and at what frequency each will appear