Q: During polyembryony, if one embryo is formed from synergids and the other from nucellus, state the…
A: The embryo is formed from the synergids is haploid as synergids is haploid.
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: How is aneuploidy different from polyploidy? What are the mechanisms by which aneuploidy and…
A: Cells are the fundamental unit of life. Cell division is the process by which two daughter cells…
Q: what part of interphase II is crucial in meiosis for the producttion of haploid cells?
A: During the formation of haploid cells or gametes, the process of meiosis occurs twice (Meiosis I and…
Q: Is the prothallium haploid or diploid?
A: The group of autotrophic organisms that have eukaryotic cells composing of cell walls is known as…
Q: During which meiosis division does ploidy reduction occur? Does ploidy reduction occur in mitosis?
A: The cell cycle represents a series of events that take place in a cell. As the cell grows, it…
Q: why must sexually reproducing organisms use both processes of mitosis and meiosis, while asexually…
A: Mitosis is an equational cell division in which diploid parent cells give rise to two identical…
Q: How many chromosomes does a human normal haploid cell have? How many chromosomes does a human normal…
A: Genetic material is nothing but the sequence of nucleic acids which is called as DNA. It contains…
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: Why does a mouse embryo develop faster than a human embryo, for example?
A: The similarities between humans and mice permit the study of the development of humans and their…
Q: Animals and plants both have diploid and haploid cells. How does the animal life cycle differ from…
A: The alternation of generations is the alternation of a sexual phase and an asexual phase in the life…
Q: Is a daughter cell haploid or diploid after the first meiotic division? How about after the second…
A: Meiosis is a type of cell division that produces haploid gametes and it is important because, during…
Q: Why is meiosis important for the maintenance of the normal quantity of chromosomes of a species with…
A: Meiosis is the process by which male and female gametes (n), sperm and ovum are produced from their…
Q: What is the function of the fused kinetochore found on sister chromatids in prometaphase?
A: In prometaphase I of Meiosis I, the critical event is the attachment of the spindle fibre…
Q: What are some possible functions of spicules and spongin? How are these sponge parts alike and…
A: Possible functions of spicules and spongin: Large spicules visible to the naked eye are referred to…
Q: How is it that some chromosomal abnormalities are incompatible with life as early as immediately…
A: Chromosomal abnormalities are one of the reasons of miscarriage and stillbirth and spontaneous…
Q: If zebrafish have a diploid number of 12, what is the chromosome number in the daughter cells of the…
A: Please follow step 2 for detailed explanation.
Q: How Does DNA Content Change as Budding Yeast CellsProceed Through Meiosis?
A: The DNA content of the cell varies from the beginning of interphase to the end of interphase. In the…
Q: What would the human life cycle be like if we have an alternation of generations? Assume that the…
A: In the sporophyte stage a diploid (contains two groups of chromosomes) plant body develops and…
Q: What is Euploidy and its types?
A: Chromosomes are carrier of deoxyribonucleic acid (DNA). DNA is the genetic material. Each species…
Q: How do haploid and diploid nuclei differ?
A: A biological cell is a hub of biochemical activities. Numerous physiological and biochemical…
Q: What is the function of the fused kinetochore found on sister chromatids in prometaphase I?
A: The pro-metaphase I is the second stage of the first meiotic division I. During this phase, the…
Q: Why is meiosis necessary in sexual reproducing organisms?
A: Meiosis: it's another method of cell division which occurs in sexually reproducing organims. Where…
Q: why is it important for germ cells to be haploid?
A: Each species of organism have different sets of chromosomes. So understanding the chromosomes is…
Q: Still studying meiosis. How many chromosomes does a haploid cell have? In prophase II how many…
A: Answer: CHROMOSOME = These are the long thread like structure of DNA which contains genetic…
Q: what is euploidy
A: The DNA molecule is packed inside a thread-like structure known as a chromosome. It is present in…
Q: What kinds of cells would the haploid cells be if meiosis were occurring in a plant? in an animal?
A: In plants Meiosis creates a multicellular haploid organism called a gametophyte,which in somr…
Q: Is metaphase 1 haploid or diploid?
A: Cell division(Mitosis and Meiosis) both consists of four phases:- a)Prophase(I Phase) b)Metaphase(II…
Q: Male honeybees, which are haploid, produce sperm by meiosis.Explain what unusual event (compared…
A: Meiosis is the reduction division type of cell division in which the original number of chromosome…
Q: What are the advantages and disadvantages of the alternation between fertilization and meiosis in…
A: The fusion of female gamete (egg cell) and male gamete (sperm) is termed as fertilization.
Q: How does meiosis maintain the number of chromosomes in a sexually reproducing species?
A:
Q: Can meiosis occur in haploid cells? Why?
A: Meiosis is a type of cell division which results in the production of four daughter cells containing…
Q: In which meiotic division does the separation of identical chromatids occur? After the end of this…
A: Meiosis occurs in two steps known as meiosis-I and meiosis-II. Meiosis-I is the reduction division…
Q: What are zygotes and other cells carrying two matching sets of chromosomes?
A: Gametes are basically the reproductive cells of an entity or organism. Sperm cell and egg cells…
Q: If cell division during gametogenesis were non meiotic, what would be its consequences to future…
A: Gametes refer to the reproductive cells in an individual. These are also called sex cells. The…
Q: What is the ploidy in parent cells in mitosis and meiosis? What is the ploidy of daughter cells in…
A: Ploidy means the number of chromosomes sets in the cell. Eukaryotes have a single set i.e. haploid…
Q: Fill in each blank with either mitosis or meiosis to answer the following questions: a. By which…
A: Mitosis is the division of a single cell into two daughter cells that are similar (cell division).…
Q: Which germ layer does structure #5 arise from?
A: The given image depicts a chicken embryo after about 33 hours of fertilization. At this stage, the…
Q: How is meiosis related to sexual reproduction
A: Each and every living organisms are made up of cells. These cells are further divided into other…
Q: Why does aneuploidy increase with maternal age?
A: A normal human cell has 46 chromosomes. Aneuploidy is a condition when a human cell has an abnormal…
Q: What is the ploidy of the daughter cells at the end of meiosis I? What about at the end of meiosis…
A: Ploidy means the number of chromosome sets in the cell. Meiosis is a type of cell division that is…
Q: What would happen to the chromosome number in gametes and offspring if gametes were formed by the…
A: During sexual reproduction, gametes from parents fuse together and forms a fertilized cell called…
Q: When do chiasmata develop during meiosis? (Please be specific!) • How do chiasmata affect…
A: Step 1 Every cell has the power to grow and divide to form new cells of the same kind. At the time…
Q: Which are the three tetrad types produced by meiosis of dihybrid yeast?
A: Meiosis is a type of reduction division where one cell divides to give ride to four daughter cells.
Q: What is chromosome number of egg?
A: Haploid describes a cell containing a single set of chromosomes present in the cell. The term…
Q: Are human gametes haploid or diploid? Are human somatic cells haploid or diploid? Are fertilized…
A: Ploidy refers to the total number of chromosome sets present in the cell of an organism.
Q: When is a tetrad specifically formed? Would it be found in a haploid or diploid cell? What event…
A: The "cell cycle", also known as "cell division", is a set of processes that occur in a cell leading…
How is it that the embryo sacs of some apomictic species look normal but contain diploid cells?
Step by step
Solved in 2 steps
- Are human gametes haploid or diploid? Are human somatic cells haploid or diploid? Are fertilized eggs haploid or diploid?Describe the formation of a zygote. How many pairsof chromosomes are in a zygote, and where do thechromosomes within a pair come from?During polyembryony, if one embryo is formed from synergids and the other from nucellus, state the one that is haploid and the one that is diploid.
- Why must the life cycle of sexually reproducing species alternate between haploid and diploid stages? A) Mitosis must occur at some point in the life cycle to prevent a doubling of chromosomes in each generation. B) Meiosis must occur at some point in the life cycle to prevent a doubling of chromosomes in each generation. C) Mitosis must occur at some point in the life cycle to prevent a reduction of chromosomes in each generation. D) Meiosis must occur at some point in the life cycle to prevent a reduction of chromosomes in each generation.What are zygotes and other cells carrying two matching sets of chromosomes?How does meiosis maintain the number of chromosomes in a sexually reproducing species?
- How many homologous pairs of chromosomes would be in the zygote if it were a male organism? Explain.How many chromosomes does a human normal haploid cell have? How many chromosomes does a human normal diploid cell have? How many are thesex chromosomes within each of them?why must sexually reproducing organisms use both processes of mitosis and meiosis, while asexually reproducing organisms only use mitosis?
- How does ploidy change in Meiosis I? How many cells are produced at the end of Meiosis I? How many cells are produced at the end of Meiosis II?why do the embryos of different species resemble each other?Why do diploid organisms that reproduce via sexual reproduction even bother with meiosis? What is the point of this complex and energetically expensive process?