Advertisements
Advertisements
प्रश्न
Which of the following hormones is not secreted by human placenta?
विकल्प
LH
Progesterone
Estrogens
hCG
Advertisements
उत्तर
LH
Explanation:
The placenta secretes hCG, estrogens, and progesterone, but LH is secreted by the anterior pituitary gland, not the placenta.
APPEARS IN
संबंधित प्रश्न
When and where do chorionic villi appear in humans?
During the reproductive cycle of a human female, when, where and how does a placenta develop? What is the function of placenta during pregnancy and embryo development?
Medically it is advised to all young mothers that breast-feeding is the best for their newborn babies. Do you agree? Give reasons in support of your answer.
Gonads develop from embryonic ______.
Which of the following hormones is not a secretory product of human placenta?
The early stage human embryo distinctly possesses ______.
Mark the odd one.
Read the following and answer from given below:
Cleavage is the series of rapid mitotic divisions in the zygote and forms blastula. The 2, 4, 8, 16 daughter cells are called blastomeres. An embryo with 64 blastomeres is known as a blastocyst and has a blastocoel cavity. Blastocyst gets implanted in the uterine wall and leads to pregnancy.
The correct sequence of various structures formed during embryonic development is ______
Several hormones like HCG, HPL estrogen, and progesterone are produced by ______.
hCG is secreted by ______
Except endocrine function, what are the other functions of placenta.
The diagram given below represents a specific stage of human embryonic development. Identify the stage.

During embryogenesis in dicots, the zygote divides into a basal cell and a terminal cell. The basal cell divides repeatedly to produce a structure called suspensor. Carefully observe the image given below and describe the function of cell – A and cell – B of the suspensor.

Zygote
The diagram given below shows the early embryonic stages of fish, reptiles, birds and humans. Though adult reptiles, birds and mammals breathe air, their embryos possess gills. How does this fact support evolution?

What is the name of the early developmental process in which the embryo changes from a single-layered blastula into a three-layered structure?
Which structure is formed after implantation of the blastocyst and connects the fetus to the uterine wall?
Through which structure is the placenta connected to the embryo, containing blood vessels for substance transport?
Which germ layer gives rise to organs such as the liver, pancreas, stomach, and intestines?
