TLS Online TPP Program

#Question id: 9185


Plants are affected by an array of pathogens. Which of the following is a plant defense against disease?

#Unit 9. Diversity of Life Forms
  1. cells near the point of infection destroying themselves to prevent the spread of the infection
  2. production of chemicals that kill pathogens
  3. acquiring gene-for-gene recognition that allows specific proteins to interact so that the plant can produce defenses against the pathogen
  4. All of the above are plant defenses against disease.
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TLS Online TPP Program

#Question id: 15121

#Unit 8. Inheritance Biology

Which of the following examples would NOT be consistent with a gene dosage effect?

TLS Online TPP Program

#Question id: 15116

#Unit 8. Inheritance Biology

In a rare blood type referred to as the Bombay phenotype, individuals are unable to attach the A or B antigens to their red blood cells. Individuals that are homozygous recessive for gene "H" have the Bombay phenotype and their blood type is type "O" regardless of their ABO genotype. This is an example of what extension of Mendelian inheritance?

TLS Online TPP Program

#Question id: 15115

#Unit 8. Inheritance Biology

A semi lethal allele is an example of which of the following extensions of Mendelian genetics?

TLS Online TPP Program

#Question id: 12176

#Unit 8. Inheritance Biology

In a Z-linked characteristic, Cameo plumage, which produces brown feathers, while the wild-type plumage is a glossy metallic blue. If  a pure blue-colored male is crossed with a cameo female, then what will be the probability of blue and cameo plumage of male and female in F2 phenotype?

TLS Online TPP Program

#Question id: 12175

#Unit 8. Inheritance Biology

Colour blind are X-linked disorder, a colour blind male have daughter cross with colour blind male, then what will be the probability of colour blindness?

TLS Online TPP Program

#Question id: 12174

#Unit 8. Inheritance Biology

Red-eyed female (X ^+X^+ ) crossed with white-eyed male (X^w Y) , all the F1 progeny shows the red phenotype, then what will be the probability of F2 phenotype;
 i)  Male with red eye phenotype
ii) Female with white eye phenotype
iii) Female with red eye phenotype
iv) Male with white eye phenotype