TLS Online TPP Program

#Question id: 5072


Movement of epithelial cells as a unit to enclose deeper layers of the embryo. This type of cell movement during gastrulation occur in:

#Unit 5. Developmental Biology
  1. Hypoblast in birds

  2. Ectoderm in amphibians

  3. Mesoderm in amphibian

  4. Endoderm in sea urchin

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TLS Online TPP Program

#Question id: 4752

#Unit 8. Inheritance Biology

Red-green color blindness is caused by a sex-linked recessive allele. A color-blind man marries a woman with normal vision whose father was color-blind. What is the probability that they will have a color-blind daughter? What is the probability that their first son will be color-blind respectively?

TLS Online TPP Program

#Question id: 4753

#Unit 8. Inheritance Biology

Pattern baldness in humans is a sex-influenced trait that is autosomes dominant in males and recessive in females. What is genotype of both parents with normal hair had one son with pattern baldness and another son is normal hair?

TLS Online TPP Program

#Question id: 4754

#Unit 8. Inheritance Biology

Allele A is epistatic to allele B. Which of the following statement are incorrect?

TLS Online TPP Program

#Question id: 4755

#Unit 8. Inheritance Biology

When two albino snails were crossed, all of the F1 were pigmented. All F1 intercross would results

TLS Online TPP Program

#Question id: 4756

#Unit 8. Inheritance Biology

In summer squash, white colour fruit (W) is dominant over yellow colour (w) and disc-shaped phenotype (D) is dominant over sphere-shaped phenotype (d). Determine the genotype of the parents gives 3/8 white, sphere, 3/8 white, Disk, 1/8 Yellow, Disk and 1/8 Yellow, Sphere?

TLS Online TPP Program

#Question id: 4757

#Unit 8. Inheritance Biology

The newborn baby of a mother having blood group O, Rh+ and father having blood group AB, Rh-, got mixed with other babies in the hospital. The baby with which of the following blood groups is not confirmable to be of the said couple?

(i) AB, Rh+                                                    (ii) O, Rh+

(iii) A, Rh+                                         (iv)  B, Rh+