Q: Name the process of development of egg into young one without fertilization?
A: The above-mentioned definition is true for parthenogenesis. It is a type of asexual reproduction…
Q: What parts are persistent throughout the development of the embryo? Why are these present in all the…
A: Answer
Q: Are all of the cell nuclei in the embryo sac haploid or is just the egg haploid?
A: The group of organisms with eukaryotic cells having cell walls and autotrophic nutrition are called…
Q: Why is knowing information about embryo development important
A: EMBRYO DEVELOPMENT:- It is the process of formation of the embryo, starts with the fusion of male…
Q: What are embryophtes?
A: Plants are mainly multicellular organisms, predominantly photosynthetic eukaryotes of the kingdom…
Q: Why do most zygotes develop after certain amount of embryo is formed?
A: The embryo is the early stage of the development of multicellular living beings. A fertilized egg…
Q: Is the mammalianembryonic development director indirect?
A: The process of embryonic development is otherwise known as embryogenesis. Fertilization is the…
Q: Which process occurs between the zygote and the embryo stage
A: Fertilization is the process of fusion of the male gamete and the female gamete, resulting in…
Q: hat parts are persistent throughout the development of the sea urchin embryo? Why are these present…
A: A multicellular animal arises from a single cell a fertilized egg. During development ,the cell…
Q: Name the third tier of embryonal cells in pinus formed.
A: All plants come under the kingdom Plantae. They are eukaryotes, multicellular, and having cell…
Q: What is embryos
A: Introduction The life starts from single cell called Zygote. A zygote is formed by the fusion of…
Q: Compare and contrast embryogenesis and morphogenensis and Outline the difference of somatic…
A: Embryo Embryo is the developing young one of multicellular organisms.
Q: How does the egg get from the ovary to a fallopian tube?
A: Reproduction is essential for the production of the healthy offspring and it is not necessary for…
Q: In terrestrial arthropods, fertilization is always internal (True/False)?
A: Arthropoda is the largest phylum in the animal kingdom, which includes such familiar forms as…
Q: Draw the chromosomes in the zygote (cell after fertilization) egg cell fertilization sperm cell
A: Sperm cell is the male gamete and egg cell is the female gamete. Gametes are haploid in nature. Male…
Q: Name the three embryonic tissue layers of vertebrate embryos,and describe the process by which they…
A: Gastrulation is the cycle where differentiated cells from the zygote move to their particular areas.…
Q: What is the cell divisionduring the first stage of theembryonic developmentcalled? How is this…
A: The process by which a parent cell divides into two identical daughter cells, is called Cell…
Q: What is meant by the term “activation” in embryology?
A: Embryology is a branch of biology. It is the study of formation, growth as well as the development…
Q: Why are sea urchins have external fertilization? What are the adaptive advantages of external…
A: Sea urchins are significant herbivores on coral reefs, & in certain environments they assume a…
Q: What is developmental mechanism?
A: In biology, a mechanism is a system of causally interrelated elements and processes that result in…
Q: Embryo above pictured here is a/an
A: An embryo is the first stage of a cellular organism's development. Embryonic development is the…
Q: Briefly discuss the important events occurring during gastrulation and neurulation in avian…
A: Gastrulation is a process during embryo development where the zygote undergoes cleavage and forms a…
Q: Compare and contrast the mechanisms of egg activation in internal versus external fertilization.
A: Fertilization is part of sexual reproduction, responsible for the fusion of gametes. In case of…
Q: Does the distribution of Ca²+ in an egg correlate with formation of the fertilization envelope?
A: During fertilization, sperm-induced rise in cytoplasmic Ca2+concentration.
Q: What is meant by “induction” in embryology? Describe the famous organizer experiment of Spemann and…
A: Embryonic development refers to the development and formation of the embryo. It is characterized by…
Q: . How does the fertilization envelope form in sea urchins?What is its function?
A: Sexual reproduction is a type of reproduction that involves a complex life cycle in which a gamete…
Q: Is the sulcus limitans present at the 72-hour stage? State the derivatives of the sacculus and
A: Embryo development is a process that occurs after the process of fertilization has occurred and the…
Q: Poor embryonic development occurs because ____________________________.
A: After fertilization, a single celled diploid zygote is formed, which later develops into…
Q: How is embryology different from developmental biology?
A: During their life cycles;most of the living organisms like plants and animals undergoes various…
Q: Ectodermal Derivatives of the Developing Chick Embryo A. 33-hour Chick Embryo Transverse…
A: 1. Neural is situated in the region of or on the same side of the body as the brain and spinal cord…
Q: What is developmental biology?
A: Introduction Biology is the study of life as a science. It is a broad-ranging natural science with…
Q: are the essential similarities and differences between the development of sperms and eggs in mammals
A: Both sperm and ovum are haploid having 'n' number of chromosome. Both undergoes mitosis as well as…
Q: From which of the following is the embryo developed? Trophoblasts Inner cell mass Blastocoelen…
A: Embryo is formed from the zygote and zygote is formed by the union of the male and female gametes.…
Q: What result would Jost have obtained if female development alsorequired a signal from the gonad?
A: Endocrine system is a regulatory system of ductless glands that secrete chemical messengers called…
Q: From what the amnion of mammalian embryo is derived?
A: Amnion is an extraembryonic membrane also known as fetal membrane along with chorion, allantois, and…
Q: How does von baer's law of development relates with the development of the frog embryo? evidences?
A: Von Baer's laws of development These are rules proposed by Karl Von Baer. The laws demonstrates the…
Q: Is a zygote a fertilized egg?
A: Fertilization is the process whereby gametes from each parent fuse to produce a new cell.
Q: What are the consequences of the differences in the yolk amount and distribution of eggs among…
A: The amount and distribution of yolk inside the egg decides the pattern of cleavage. The type of…
Q: What other developmental hallmarks are often associated with spiral or radial cleavage?
A: Based on the directions and angles the cleavage furrow cuts, cleavage is of four types, namely,…
Q: The embryo below exhibits cleavage. radial bilateral spiral O modified
A: During developmental periods single cell zygote is transform into multicellular embryo by the…
Q: The order in which the physiological stages occur during embryonic development is and
A: The fusion of haploid male gamete(sperm) and female gamete(egg/ovum) to form diploid zygotes is…
Q: What is indirect development?
A: Development involves the functional and physiological maturation of an individual. It is a…
Q: What is the relationship between meiosis and fertilization?
A: Meiosis is a sort of cell division that occurs in sexually reproducing organisms' germ cells and is…
Q: The Embryonic stem cells can be derived from _______ which is developed by “invitro…
A: The egg cell fuses with the sperm cell to form the zygote. The zygote develops into an embryo where…
Q: In animal phyla with radial cleavages, cell fate of the embryo is?
A: Radial cleavage is a developmental pattern of embryos where the cell division happens…
Why does the dispersion or contraction stage of the developmental cycle assume a complex character
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- For every developmental stage, there is an expected developmental task, what happens when the expected developmental tasks are not achieved at the corresponding developmental stage?In terrestrial arthropods, fertilization is always internal (True/False)?How might the asymmetry of an embryo change if after fertilization its moved to a restrictive temperature.
- Compare and contrast embryogenesis and morphogenensis and Outline the difference of somatic embryogenesis and zygotic embryogenesis.Why does a mouse embryo develop faster than a human embryo, for example?What parts are persistent throughout the development of the embryo? Why are these present in all the stages?
- What parts are persistent throughout the development of the sea urchin embryo? Why are these present in all the stages?Why is knowing information about embryo development important?In embryos with spiral cleavage the 4d cell gives rise to which germ layer_______________________________. Group of answer choices endoderm gastroderm mesoderm ectoderm epiderm