#Question id: 4891
#Unit 8. Inheritance Biology
plantlike organism on the planet Pandora can have three recessive genetic traits: bluish leaves, due to an allele (a) of gene A; a feathered stem, due to an allele (b) of gene B; and hollow roots due to an allele (c) of gene C. The three genes are linked and recombine. A geneticist performed a testcross with an organism that had been found to be heterozygous for the three recessive traits, and she was able to identify progeny of the following phenotypic distribution (+ = wild type):
A) Genes are in the order: a-c-b
B) Genes are in the order: a-b-c.
C) Genes are in the order: b-a-c
D) Interference is one
E) Greatest distance between gene a and b
#Question id: 4892
#Unit 8. Inheritance Biology
The RFLP pattern for this locus, obtained by hybridization using a probe internal sites, from family is shown below: Based on the above profile, what is the nature of the genetic disorder?
#Question id: 4893
#Unit 8. Inheritance Biology
In tomatoes, tall (D) is dominant over dwarf (d) and smooth fruit (P) is dominant over pubescent fruit (p), which is covered with fine hairs. A farmer has two tall andsmooth tomato plants, which we will call plant A and plant B. The farmer crosses plants A and B with the same dwarf and pubescent plant and obtains the following numbers of progeny
a. The genotypes of both plant A and plant B are DdPp
b. In plant A, Gene D and Gene P link as cis configuration
c. In plant B, Gene D and Gene P link as cis configuration
d. In plant A, Gene D and Gene P link as trans configuration
e. In plant B, Gene D and Gene P link as trans configuration
Which of the following above statement are not correct?
#Question id: 4894
#Unit 8. Inheritance Biology
Following is figure showing restriction site on coding gene. Which of the following is mode of inheritance?
#Question id: 4895
#Unit 8. Inheritance Biology
What is the difference between a linkage map and a physical map?
a) Genetic maps are based on recombination frequencies, but physical maps are based on restriction digestion.
b) Physical DNA map describes the absolute position of genes on a chromosome while genetic map so variable
c) Genetic maps are important to identify the origin of diseases, whether they are inherited or arise due to a random mutation.
#Question id: 4896
#Unit 8. Inheritance Biology
A cross between individuals with genotypes AaBbX aabb produces the following progeny:
AaBb - 21, aaBb- 83, Aabb- 77, aa bb -19
Which of the following statements is true?
a) Map unit between gene A and B
b) Configuration
c) parents genotype of AaBb