In which of the following organisms does holoblastic cleavage typically occur?

I) sea urchins

II) humans

III) birds

IV) fish

#Question id: 4757

#SCPH12 I Genetics

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+

#Question id: 4758

#SCPH01 Biochemistry

The allele l in human population is recessive lethal and x chromosome linked. If a female is heterozygous for l allele marries with normal male. What will be interpretation correct?

#Question id: 4758

#SCPH12 I Genetics

The allele l in human population is recessive lethal and x chromosome linked. If a female is heterozygous for l allele marries with normal male. What will be interpretation correct?

#Question id: 4759

#SCPH01 Biochemistry

which of the following is not a mechanism for sex determination?

#Question id: 4759

#SCPH12 I Genetics

which of the following is not a mechanism for sex determination?

#Question id: 4760

#SCPH01 Biochemistry

you set up a cross between true breeding wild type male fruit flies and true breeding female flies with a yellow body color. you notice in the f1 generation that half the flies, specifically all the males, have yellow body color while the females are wild type (gray). which of the following explanations is the most likely?