Predict the flower phenotypes of the mutant plants listed below.
Briefly explain your answers. If it is easier, you may upload a
drawing of a "box diagram" to represent A, B, & C fields to
show which functions act in the different whorls.
A) ag mutant
B) ap2 pi double mutant
C) ap3 ag double mutant
Three genes with recessive mutant phenotypes are located on the
same chromosome in maize: short stem (ss), purple aleurone
(pr), and knotted leaf (kn). A plant with all
three mutant phenotypes is crossed with a true-breeding, wild-type
plant. Resulting F1 plants are then backcrossed to the parental
mutant line to produce the following progeny:
(7 points)
Short
Purple Knotted
Number
ss
+
kn
2342
+
pr
+
2297
ss
pr
kn
4095
+
+ ...
Mendelian genetics practice
1. What is the ratio of phenotypes in the offspring produced by
the cross Aa x Aa? Assume complete dominance for the trait. A) 100%
dominance B) 100% recessive C) 75% dominant: 25% recessive D) 50%
dominant: 50% recessive E) 25% dominant: 75% recessive
2) If the allele for inflated pea pods (I) is dominant to the
allele for constricted (i), the cross Ii x ii is expected to
produce A) all with inflated pods. B) all...
1. What type or types of phenotypes are favored by stabilizing
selection?
2. What type or types of phenotypes are favored by directional
selection?
3. What type or types of phenotypes are favored by disruptive
selection?
You cross a mutant with phenotype 'a b c^+' to a mutant
with the phenotype 'a^+b^+c' and test cross the F1. Given
this genetic map, predict the phenotypes observed in the offspring,
and the number of each expected in a population of 2500 (show your
work).
c < 19 m.u. > a <8 m.u. >
b
Cross AABBCCDDee x aabbccddEE strains. What are the resulting
genotypes and phenotypes in the first and second generations?
show the F1 genotype, then calculate the number of possible F2
genotypes so that the problem is condensed. Please and thank
you!
What phenotypes would you predict for a bacterium with a
mutation in cheA (kinase)? Explain the reasons for the expected
phenotypes such as presence of chemotactic​ reactions, motility, or
movement such as swimming, tumbling or both.