The bulbis glandis causes the "tie" after copulation. It occurs in A) horses cattle C) cats dogs

Q: The Mullerian ducts in female mammalian embryos develop into…   a)   The vas deferens   b)   The…

A: During embryonic development, the reproductive system goes through a complex differentiation process…

Q: Construct a diagram to explain FSH & LH and how their roles affect the female reproductive system

A: FSH ( Follicle stimulating hormone ),  LH ( Luteinising Hormone),  FSH and LH are the lipid hormones…

Q: Where in the female body does fertilization normally occur? Question 23 options: a)  In the…

A: Fertilization means the fusion of egg (of female) and sperm(of male). The eggs get matured in the…

Q: What is the function of the ovaries in a flowering plant?   To produce female gametes…

A: The plants are the multicellular eukaryote of the kingdom Plantae. It is the autotrophic organism…

Q: Define the terms dioecious and monoecious. Can either of these terms be used to describe a…

A: Reproduction is the biological process by which new individual organisms called offspring are…

Q: different phases and stages of the estrous cycle

A: The estrous cycle has four stages in particular proestrus, estrus, metestrus and diestrus and goes…

Q: Describe the sequence of events leading from spermatogonia tosperm?

A: The process of fertilization is the process in which the male gamete fuses with the female gamete.…

Q: Which of the following triggers the destruction of the sperm receptors on the surface of the oocyte?…

A: The reproductive system is a vital organ system that concerns the production, maturation, and…

Q: Trace the events from copulation to zygote formation in a human female.

A: Humans (Homo sapiens sapiens) evolved in such a way as to perform internal fertilization and the…

Q: Explain the key events of neurulation.

A: The continuation of species in the world is due to the process of reproduction; either sexual or…

Q: define sex reversal in humans

A: Reproduction is a biological process by which an organism reproduces an offspring who is…

Q: During what embryonic stage can morphogenesis be seen?   Question 9 options:   a)  The morula…

A: Basically morphogenesis means the development of organs and organ system by the process of…

Q: Where are male gametes produced in flowering plants?   In the anthers   In the testes…

A: The reproductive structures in flowering plants are present in the same individual plant.…

Q: Why does external fertilization not require the involvement of gametes?

A: The fertilization is the characteristics of sexual reproduction that involves fusion of male and…

Q: Describe events that follow contact of a spermatozoon with an egg. What is polyspermy and how is it…

A: Fertilization happens when a sperm and an oocyte (egg) combine and their nuclei.

Q: During the menstrual cycle, the degradation of the corpus luteum causes what? A) The decrease of…

A: The menstrual cycle is the regular change that takes place in the female reproductive system and is…

Q: Define cryptorchidism?

A: The reproductive system is a vital system of the body that concern with the development of gametes…

Q: One potential advantage of sexual reproduction is that offspring will have more genetic…

A: Sexual reproduction involves the fusion of gametes from two different individuals resulting in…

Q: Describe one advantage and one disadvantage of ASEXUAL reproduction.

A: Paramecium, sometimes known as Paramoecium, is a genus of "ciliated unicellular protozoa." They live…

Q: How does Cu- T act as a contraceptive?

A: Birth control is also called as contraception and fertility control. It is a method or device used…

Q: 1) Match the following terms with their location on the diagram of the male reproductive system. 8…

A: The male reproductive system is responsible for producing, storing, and delivering sperm. It…

Q: What immediate effect does the SRY gene have on a developing fetus?   A) It directs the gonads to…

A: The sex of the fetus is determined before fertilization which depends on the presence of a Y…

Q: Shedding of the functional layer of the endometrium also known as menstruation occurs when a) the…

A: The endometrium is a type of inner epithelial layer of the uterus. It has two layers – functional…

Q: In humans:a. How many sperm develop from 100 primaryspermatocytes?b. How many sperm develop from 100…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: What are the general characteristics of sexual reproduction in humans and other vertebrates that are…

A: Sexual reproduction:  it is responsible for the generation of diversity. It is process which occurs…

Q: Fertilization made artificially in the laboratory is called ___________.a) Invitro fertilization b)…

A: When an egg of a female unites with the sperm of the male, the formation of a fertilized cell…

Q: Explain the process of estrus synchronization.

A: Reproduction is the process that involves fusion of the male and female gametes in order to produce…

Q: What structure induces the process of neurulation?

A: Embryology is a branch of science that deals with the principles of the embryos from the stage of…

Q: Describe the basis of sex reversal in humans.

A: Sex-reversal is an event in which the sex of an offspring is opposite to the genetically determined…

Q: The hormones in combined estrogen-progestin birth control pills prevent pregnancy primarily by…

A: For fertilization menstrual cycle is very important because it helps in the release of ova or egg…

Q: What is reproductiveisolation?

A: Genetics is the branch of biology that deals with the study of genes, their inheritance patterns,…

Q: How can it be beneficial for males to produce very large numbers of very small sperm?

A: In anisogamous form of sexual reproduction, sperm is the male reproductive cell, or gamete. Animals…

Q: When during the menstrual cycle does ovulation (ovulation) usually take place in a woman of…

A: Ovulation is the process of release of ovum from mature graffian follicle. The whole menstrual cycle…

Q: What is eutely?

A: Cell is a basic membrane-bound unit and it is often called as the basic building blocks of all…

Q: Explain the Advantages and Disadvantages of Asexual Reproduction.

A: It is atype of reproduction involving a single organism without fusion of gamete which usually…

Q: Shedding of the functional layer of the endometrium also known as menstruation occurs when a) blood…

A: If the egg is not fertilized or if the fertilized egg does not implant, the corpus luteum…

Q: The following characteristics are true of the male gamete sperm except: A. lifespan: 72 hours B.…

A: The reproductive cells of an organism are known as gametes. They can also be referred to as sex…

Q: Which portion of the ovary serve as an endocrine gland after ovulation? A) Graafian follicle B)…

A: Introduction: The ovary is the primary sex organ of the females present in pairs and is responsible…

Q: Define andropause (male climacteric)?

A: Hormones are the body's biochemical messengers. They are secreted by an endocrine gland, injected…

Q: 7) The following events occur during proestrus (PE).   Select all that apply:  a) The early…

A: After mating, pregnancy is established in the female animal. This stage is preceded by a number of…

Q: List three ways in which oopenesis differs from spermatogeneis.  Be specific.

A: Spermatogenesis and oogenesis are the processes of the formation of male and female gametes.…