TLS Online TPP Program

#Question id: 13144


Shell coiling of the snail Limnaea peregra(genetic maternal effect)  the shell coils (s+s+) which is termed dextral coiling, while some snails exhibiting sinistral coiling (ss). The allele for dextral (s +) is dominant over the allele for sinistral (s). If a male homozygous for dextral alleles (s+s+) is crossed with a female homozygous for sinistral alleles (ss) all of the F1 are heterozygous (s+s) and have a sinistral shell. If these F1 snails are self-fertilized, what is the phenotype of the F2 snail?

#Unit 8. Inheritance Biology
  1. snail are half dextral coiled and sinistral coiled
  2. All the snail are dextral coiled
  3. All the snail are sinistral coiled
  4. 75% dextral and 25% sinistral   
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TLS Online TPP Program

#Question id: 28944

#Unit 7. System Physiology – Animal

Which of the following Prediction is correct about adrenocorticotropic hormone (ACTH) ? 
a) CRH Stimulates secretion of ACTH by corticotropes
b) it controls the secretion of cortisol by the activation of adenylyl cyclase via Gαq
c) it controls the secretion of cortisol by the activation of adenylyl cyclase via Gαs

TLS Online TPP Program

#Question id: 28945

#Unit 7. System Physiology – Animal

Which of the following hormones is involved to promotes the mammary gland development and milk production?

TLS Online TPP Program

#Question id: 28946

#Unit 7. System Physiology – Animal

GnRH is carried to the anterior pituitary, stimulates the secretion of hormones by gonadotropes. these hormones are; 

TLS Online TPP Program

#Question id: 28947

#Unit 7. System Physiology – Animal

Kallmann syndrome exhibit gonadal dysfunctions in male, which of the following statements is incorrect ?
A. a condition that causes hypogonadotropic hypogonadism (HH) 
B. an impaired sense of smell called anosmia 
C. it causes due to the deficiency of gonadotropin-releasing hormone (GnRH) 
D. they have higher level of circulating gonadotropins
E. a condition that causes hypergonadotropic hypergonadism (HH)

TLS Online TPP Program

#Question id: 28948

#Unit 7. System Physiology – Animal

FSH and LH is involved to which of the following activity?

TLS Online TPP Program

#Question id: 28949

#Unit 7. System Physiology – Animal

GHRH-Hypothalamus stimulates growth hormone secretion by utilizing____