Q: a. How many spermatozoa does one secondary spermatocyte produce? b. Where in zygote does the first…
A: The male gamete "sperm" fuses with the female gamete "Ovum" and after this fusion "Zygote" develops.…
Q: Arugue the pros and cons having a nucleoid.
A: Nucleus is an organelle present in a cell that houses the genetic material, DNA or RNA. It is the…
Q: How is it that the embryo sacs of some apomictic species look normal but contain diploid cells?
A: Apomictic species are the ones that undergo asexual production of a seed from the ovule's maternal…
Q: What are the homologousand the heterologous portionsof the human sexchromosomes?
A: Sex chromosomes are also called allosomes or heterochromosomes. These chromosome differs from the…
Q: Diagrammatic representation of monohybrid cross?
A: Monohybrid cross is a cross between two parents with pair of contrasting characters. For this…
Q: What is a morula, and how is it formed?
A: Embryonic development or embryogenesis is the development of embryo from fertilized egg and its…
Q: What causes the cleavage furrow to ingress?
A: causes was;
Q: Explain the term polyembryony. How is it exploited commercially?
A: The embryo is the multicellular organisms’ early stage. The development of the embryo is the cell…
Q: With regard to early cleavage in the sea urchin, is the entire zygote involved in early cleavage
A: Introduction:- A sea urchin is a spiny marine creature with a globular body and a radial arrangement…
Q: Match the answer to the questions about each indicated structure. A E B D F
A: a) Structure A and B are Diploids (2n) b) Letter F represents Female gametophyte c) Letter G…
Q: What Causes the End of Cleavage in a Frog Embryo?
A: All frogs reproduce sexually, but instead of the fertilization taking place inside the female, it…
Q: What are the possible fragment number(s) for a homozygus taster?
A: PTC : It is phenylthiocarbamide tasting , a genetically controlled ability to taste…
Q: What is the differencebetween double closedcirculation and simple closedcirculation?
A: Circulatory system is one of the most important physiological system of the body that helps in the…
Q: What is the condition forMendel’s second law to bevalid?
A: Mendel’s Second law defined the different pairs of alleles placed independently during the formation…
Q: how would the chromosomes content of the eye cell of a man compare with the chromosome content of…
A: Chromosomes are thread like structures that are the condensed form of DNA. They constitute the…
Q: Explain the mechanism and types of the cleavage.
A: Cleavage in developmental biology refers to the cell division occurring in the early stages of the…
Q: 22. Identify the stage of meiosis. Why is this stage critical to human development?
A: The cell is the basic structural and functional unit of the body. The chromosomal theory of…
Q: A female snail hasoffspring that all coil to the right. What are the possible genotypes ofthis…
A: The maternal effect refers to the phenotype of offspring that are controlled by some nuclear factors…
Q: What is the significancw of cleavage in early development? Discuss.
A: The repeated mitotic divisons of the fertilized egg (zygote) is called cleavage. It is preceeded by…
Q: The surface area to volume ratio of a 4 cell stage blastomeres is 0.095 to 1?
A: There is an average increase of 22% S/V ratio after each division.
Q: Most Organisms TolerateAneuploidy for SexChromosomes explain
A: Aneuploidy is the condition when the abnormal number of chromosomes are present in the cell. For…
Q: What do you think is the function of cleavage?
A: Cleavage is defined as the repeated mitotic division of the zygote resulting in an increasing…
Q: The tertiany structure of a proteln is establised by.
A: Primary Structure of protein is a linear sequence of amino acids that is linked by peptide/amide…
Q: why do the embryos of different species resemble each other?
A: The embryo is an early stage of development in multicellular organism (from fertilization to start…
Q: Do the data support the hypothesis that the timing of the endof cleavage depends on counting cell…
A: Cells are the basic structural and functional unit of the organism. Cell division is the process in…
Q: What are the 2 steps in an acrosome reaction?
A: Fusion of acrosomal vesicle with egg cell membrane where acrosomal enzymes are released : Egg jelly…
Q: What is double fertilizaton?
A: Angiosperms are flowering plants and also considered as a diverse group of terrestrial plants.
Q: Explain the nonhomologous end joining ?
A: Introduction Being nonhomologous means having a genetic makeup that is dissimilar.
Q: rase, movement during mitosis and meiosis? Explain. omosome ay
A: Cohesin is the protein which is responsible for the sister chromatids to remain close to each other…
Q: If each sperm of Species X has 10 chromosomes, what are the numbers of chromosomes and complements…
A: The sperms are male gametes that are produced through the process of spermatogenesis in the…
Q: What is the difference between radial and spiral cleavage?
A: Cleavage is defined as the process in which division form the cells and eventually the new organism.…
Q: What are the characteristics of the cleavage embryo?
A: Answer : Cleavage is the mitotic division in which the daughter cells are formed from the parent…
Q: What is the name of thecells capable of makinggametes? What is the ploidyof these…
A: Meiosis is a kind of cell division that takes place in sexually reproducing organisms which results…
Q: In frog embryo, How many stage of cleavage can you identify? Discuss.
A: The frog egg is a massive cell, with a vol me over 1.6 million times that of a regular frog cell.…
Q: How many stages of cleavage are there in sea urchin? Discuss.
A: Sea urchins undergo radial holoblastic cleavage.
Q: Distinguish between: Meroblastic cleavage and Holoblastic cleavage. Explain with examples of each.
A: The major difference between meroblastic cleavage and holoblastic cleavage is that the meroblastic…
Q: In tabular form, Cite the differences of spermatogenesis on grasshopper and rat
A: Introduction: The animal kingdom is characterized by eukaryotic, multicellular animal forms.…
Q: Where do cleavage furrow form??
A: Mitosis is the phase in cell cycle where the division of replicated chromosomes into two new nuclei…
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: In which organism Flagellated male gametes found?
A: Gametes are an organism's reproductive cells. They are also referred to as sex cells. Gametes are…
Q: What is the formula for a female with a Philadelphia chromosome?
A: Hi, Thanks For Your Question. Answer : The Philadelphia chromosome Is A Specific Genetic…
Q: Concerning their size andbasic morphology how andwhy do the male and thefemale gametes…
A: Gametes or the sex cells are produced by the meiosis process called gametogenesis. The production of…
Q: What are Kinetochoremicrotubules?
A: Kinetochore is a structure present in chromosomes. Chromosome is a compact structure of a DNA…
Q: How many egg nuclei will be obtained from 200 megaspore mother cells?
A: Introduction A megaspore mother cell, also known as a megasporocyte, is a diploid cell in plants…
Q: What is the divisome?
A: DIVISOME--Definition--It is defined as a complex proteins molecule in bacteria that is responsible…
Q: How many stages of cleavage are there in sea urchin
A: Sea urchins go through radial cleavage, like chordates, ascidians, and different echinoderms. Like…
Q: What factors increase the V02?
A: VO2: VO2 is the measure or is an index of a body's efficiency during work. The index is calculated…
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- Why is it important for the sperm in internally fertilizing animals to undergo acrosome reaction at the right time?What causes the cleavage furrow to ingress?Cleavage blastomeres are totipotent. Differentiate this property from the terms plutipotent, unipotent, multipotent. Give examples to prove your point.
