The spermatogonia undergo division to produce sperm by the process of spermatogenesis. Choose the correct one with reference to above.
 

1.	Spermatogonia have 46 chromosomes and always undergo meiotic cell division.
2.	Primary spermatocytes divide by mitotic cell division.
3.	Secondary spermatocytes have 23 chromosomes and always undergo second meiotic cell division.
4.	Spermatozoa are transformed into spermatids.

Which among the following has 23 chromosomes?

1. Spermatogonia                               

2. Zygote

3. Secondary oocyte                           

4.  Oogonia

Which of the following hormones is not secreted by human placenta?

1. hCG                                               

2. Estrogens

3. Progesterone                                   

4. LH

The vas deferens receives duct from the seminal vesicle and opens into urethra as

1. epididymis                                           

2. ejaculatory duct

3. efferent ductule                                     

4. ureter

Urethral meatus refers to the

1. urinogenital duct

2. opening of vas deferens into urethra

3. external opening of the urinogenital duct

4. muscles surrounding the urinogenital duct

Morula is a developmental stage

1. between the zygote and blastocyst

2. between the blastocyst and gastrula

3. after the implantation

4. between implantation and parturition

The membranous cover of the ovum at ovulation is

1. corona radiata

2. zona radiata

3. zona pellucida

4. chorion

Identify the odd one from the following:

1. labia minora

2. fimbriae

3. infundibulum 

4. isthmus

Choose the incorrect statement from the following:

Identify the wrong statement from the following: