Mutations conferring antibiotic resistance in bacteria or venom-resistance of pray is example of 

#Question id: 4885

#Unit 8. Inheritance Biology

In watermelons, bitter fruit (B) is dominant over sweet fruit (b), and yellow spots (S) are dominant over no spots (s). The genes for these two characteristics link at 30 map unit. A homozygous plant that has bitter fruit and yellow spots is crossed with a homozygous plant that has sweet fruit and no spots. If an F1 plant is backcrossed with the sweet fruit, no spot parent, what are the phenotypes ratio expected in the their offspring

#Question id: 4884

#Unit 8. Inheritance Biology

True breeding brown dogs with genotype aabb were cross to true breeding white dogs with genotype AABB. All F1 offspring having white phenotype were allowed to intercross to produce F2 progeny as following number –

A- - - 118 white,

aa B- 32 black

aa bb 10 brown

A Male Dog with AaBb genotype was cross with female dog with aabb genotype. What is probability of Black phenotype among their offspring if A gene link B gene at 10 map unit at cis configuration?

#Question id: 4883

#Unit 8. Inheritance Biology

Heterozygous female selected mate to a homozygous male fruit fly with yellow body color and curved wings, four types of offspring will occur

Black body, flat wings 12.5 %

Black body, curve wing 37.5 %

Yellow body, curve wing 12.5 %

Yellow body, flat wings 37.5 %

Which of the following conclusion drawn about nature of inheritance?

A) Black body, curve wing are dominant over yellow body and flat wings.

B) F2 phenotype will not show ratio of 9:3:3:1when inter cross F1 heterozygous

C) Gene for body color and wing shape is incompletely link

D) F1 hybrid genotype having cis configuration of allele

#Question id: 4882

#Unit 8. Inheritance Biology

In Drosophila melanogaster, cinnabar eye (cn)and vestigial wing (vg) are simple recessive traits.a A male pure line wild type eye ,vestigial wing cross with female pure line cinnabar eye, wild type wing . F1female, heterozygous for both genes, was crossed with a male with cinnabar eyes and vestigial wings. The offspring resulting from this cross are listed in below class

I Wild type

II Cinnabar eye, wild-type wing

III Wild-type eye, vestigial wing

IV Cinnabar eye, vestigial wing

Above class are recombinant progeny

#Question id: 4881

#Unit 8. Inheritance Biology

A panel of cell lines was created from mouse–human somatic-cell fusions. Each line was examined for the presence of human chromosomes and for the production of three enzymes. The following results were obtained On the basis of above results. Which of the following chromosome location of enzyme 1, enzyme 2, and enzyme 3?

#Question id: 4880

#Unit 8. Inheritance Biology

There is following normal gene and their restriction site are given

 Mutant phenotype due to mutation that alters EcoRI site 1 occurs in this piece of DNA. There is following analysis of different band in their family (+ present , - absent) 

 Which of the following is mode of inheritance of trait?