What is the primary purpose of the fertilization membrane? a)Provide the growing embryo with food b)Serve as a barrier to protect the zygote from the environment c)Prevent multiple sperm from attempting to merge with an egg d)Hold the cells together when the zygote begins undergoing cell division e)None of these options is correc

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: Meiosis only takes place in which cell? A) skin cells B) gametes © C) nerve cells D) all cells

A: ANSWER) Meiosis type cell division is the division of cells which the 4 identical cells are formed…

Q: Placenta ... a) ... develops from trophoblast cells. b) ... develops from embryoblast cells. c)…

A: Pregnancy occurs when the male gamete sperm fuses and fertilizes with the female egg that is…

Q: Of the three polar bodies , one came from an unequal division of the ovum , but from where did the…

A: The process of the formation of the egg within the ovary is called oogenesis. This process is also…

Q: 1)Development is just another name for fertilization a)True b)False 4)A fertilized egg is the same…

A: Fertilization is a term used to denote the fusion of male gamete i.e. sperms/pollens with the female…

Q: This form of cell division requires the doubling of DNA molecules prior to onset. (Choose one…

A: Mitosis cell division is the type of cell division in which the cell divides to form two daughter…

Q: 35. The differentiation of the primitive gonads into testes or ovaries depends on the presence or…

A: The Y chromosome have SRY gene which is referred to as the sex determination region. This is present…

Q: Why is a second polar body expelled after fertilisation?   a)   To remove excess cytoplasm   b)…

A: The second polar body is a small, non-functional cell that is produced during oogenesis after the…

Q: In rodent development, what would happen if there was no x-fetoprotein to bind the circulating…

A: Introduction  Alpha-fetoprotein (AFP) is a protein that is normally produced during fetal…

Q: 3. During the course of successful prenatal development, a human organism begins as a(n): A) Zygote…

A: The goal of developmental biology is to comprehend how an organism develops—how a single cell…

Q: A full-term newborn has respiratory distress. Ultrasonography shows that the abdominal organs have…

A: The objective of the question is to identify the embryonic structure whose abnormal development…

Q: Nematocysts are  a.) reproductive cells b.)excretory organs c.) set of muscle cells d.)…

A: Answer  (e). Defensive cells

Q: Why must the life cycle of sexually reproducing species alternate between haploid and diploid…

A: Cell division A parent cell splits into two daughter cells through this process.  Cell division…

Q: How big is a zygote?

A: A zygote is a cell that forms as a result of fertilization or fusion of male and female gametes. The…

Q: Identify the stage of meiosis diploid cells of this species have 3 homologous pairs of chromosomes a…

A: Introduction  Cell division is the process by which a single cell divides into two or more daughter…

Q: All of the following describe a gamete, EXCEPT: a) sperm b) haploid c) zygote d) egg

A: Gametes are an organism's reproductive cells. They are also referred to as sex cells. Female gametes…

Q: Most species reproduce sexually. Some species are entirely asexual, while others can reproduce in…

A: There are two main types of reproduction that are seen in living organisms, Sexual and Asexual Modes…

Q: In Deuterostomes, nutrient molecules (monomers) are taken in to the space between the endoderm and…

A: Option (a) is incorrect because, in Deuterostomes, nutrient molecules (monomers) are taken up into…

Q: Which of the following statements about reproduction are true? I-Fertilization only occurs in sexual…

A: Reproduction can be defined as that biological process in which parental organisms produce offspring…

Q: THE FATE OF THE 1ST OPENING IN THE PROTOSOMES AND THE 2ND OPENING IN THE DEUTEROSTOMES IS DETERMINED…

A: Introduction  During their embryonic development, animals belonging to the clade of protostomes…

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: What is the difference between zygote and embryo?

A: The process of embryogenesis and fetal development initiate after the event of fertilization. It is…

Q: Why is it concerning for a fertilized egg to implant outside of the uterus?

A: In the human body, the female reproductive organ is located within the pelvis, it comprises primary…

Q: What is true of the Progress Zone model? a) the length of time a cell resides in the progress zone…

A: Introduction: * The classical progress zone model proposes started that the limb bud grows  under…

Q: Define the following terms related to sexual production: a.) Autosome b.) Sex chromosome c.) Gamete…

A: The type of reproduction in which two parents are involved is known as sexual reproduction.

Q: 25) Compared to asexual reproduction, the main advantage of sexual reproduction is that it: A)…

A: Question 25)  - Compared to asexual reproduction, the main advantage of sexual reproduction is that…

Q: Which layer is responsible for encasing the growing embryo?

A: An embryo is an early stage of development that is present in a multicellular organism. Embryonic…

Q: S 138. A male newborn has albinism. The most likely cause of the lack of pigmentation in this…

A: The objective of the question is to identify the origin of the cells that are most likely…

Q: The process by which haploid cells are produced from diploid cells is called A( sexual reproduction.…

A: The DNA handed down from parents to children leads them to look alike. Reproduction necessitates DNA…

Q: Which of the following primary germ layers nervous tissue develops from? a ) yolk sac b) endoderm…

A: The life of a human being begins in the womb as an embryo and undergoes various developmental stages…