6.The process where homologous chromosomes come together to form a tetrad is called A crossing over B fertilization C spermatogenesis D synapsis

Q: Why Gametes have half of the total number of chromosomes?

A: Since we only answer 1 question in case of multiple question, we’ll answer the first question as the…

Q: The process of spermatogenesis produces __________ functional sperm and Oogenesis produces…

A: Answer: SEXUAL REPRODUCTION is the type of reproduction which requires male gamete and female gamete…

Q: 12. You observe a human gamete cell that has 24 chromosomes in it. What has happened? Explain.

A: The meiosis is the cell division process by which a diploid (2n) mother cell divides it's nucleus…

Q: 4. Some stages in the development of an individual are listed here. A = differentiation of cells…

A: When sperm fertilizes the ovum, then the formation of a zygote occurs. The zygote undergoes cleavage…

Q: 1) Explain or draw the process of Meiosis and include crossing over. Make sure you include what the…

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Q: 2.) The somatic cells in a horse have 64 chromosomes. 1. What is the diploid number for a horse? II.…

A: Chromosomes -- It is a large group of genes which are attached to each other in single linear…

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: 13. The process by which sperm are made is called a) The process by which eggs are made is called b)…

A: It is the biological process by which new individual organism are produced from their parents.

Q: II. This type of cell division occurs during the formation of both sperm and ovum. The first meiotic…

A: Answer is option d.) one secondary oocyte and one polar body.

Q: 12) During meiosis, crossing-over may occur. Crossing over usually results in A) Overproduction of…

A: Meiosis generates 4 haploid daughter cells, which are having chromosomes in half number from their…

Q: 4. During fertilization, what process allows steps 1-4 to occur, as shown here? Tail- Outer layers…

A: Fertilization is the process by which the male and female gametes fuse to form the zygote, which…

Q: List the stages of embryonic development and what happens at each stage

A: Human fertilization occurs when the haploid sperm cells fertilize the haploid gamete. Embryonic…

Q: 9. The sister chromatids begin to coil more tightly and become visible under a light microscope…

A: DISCLAIMER Since you have asked multiple questions, we will solve the first question for you. If you…

Q: 3) For each cell below, identify the meiosis phase (meiosis I or II) and stage of meiosis it is in…

A: Cells are the smallest functional and structural unit of all organisms. All cells have a cell…

Q: 4. a. Briefly explain how the mutation in one gene can trigger a cascade of genetic impacts in the…

A: The structure, morphology and behavior of organisms are dependent upon its genes. These genes are…

Q: 2. List 3 important events that occur during meiosis and provide a justification why each should…

A: The indirect process of cell division in which the chromosome of parent cells divide once, but…

Q: 3.  in asexual reprodution, what is passed from the original cell to its offspring? RNA genotype…

A: Reproduction is the fundamental biological process of generating the offspring in the next…

Q: 2. How does Meiosis work?

A: The fundamental and active biological process by which a parent cell, after replicating of its…

Q: Which of the following stages of the fertilization process stimulates completion of meiosis II in…

A: Fertilization is the name given to the stage of developmental Biology that marks the stage when the…

Q: 3) Fill in the Venn Diagram comparing and contrasting Sexual and Asexual Reproduction. Have at least…

A: Reproduction is the process by which parents create new people or children. This procedure assures…

Q: 3. The following diagram provides an overview of the information covered thus far. Review the…

A:

Q: 1. It is the creation of an offspring by fusion of haploid gametes, male sperm and female eggs, to…

A: Introduction Reproduction:- It is the process of producing new individuals of the same kind, an…

Q: 5. What of the following statements are NOT true regarding meiosis? A. It results in 4 haploid cells…

A: Meiosis is a type of cell division that where a single cell divides twice to produce four cells…

Q: Spermatogenesis and oogenesis both involve meiosis but differ in significant ways. One of those…

A: The procedure, incidence, and product production after gametogenesis are all key differences between…

Q: 7. Which sequence represents the correct order of events for the formation and development embryo?…

A: Reproduction is the process which is responsible for producing the young ones.

Q: Normal somatic cells of horses have 64 chromosomes (2 n = 64). How many chromosomes and DNA…

A: The mechanism of producing sperms is termed as spermatogenesis.

Q: 4. Define crossing over. In what phase does it occur? 5. How does the number of chromosomes in a sex…

A: Introduction:- In organisms, sexual reproduction occurs by the union of male and female gametes,…

Q: 9. During prophase I of meiosis, these pairs form a tetrad in a process called a) When homologous…

A: Answer. Answer 9. During prophase I of meiosis, these pairs form a tetrad in a process called…

Q: 9. Some biologists contend that the term double fertilization is a misnomer and that the process…

A: Fertlizatiion is the process of the male gamete, sperm, fusing with the female gamete, the ovum,…

Q: The condition of a zygote with three copies of a chromosome is known as ________.

A: According to guidelines we have to answer the first question only. so please kindly post the…

Q: 3. Diploid somatic cells of elephants have 56 chromosomes. What would be the resulting number of…

A: Primary spermatocyte undergoes meiosis to produce spermatids. Meiosis occurs in two stages,…

Q: Meiosis is necessary because: a. Fertilized ovum will have too much genetic material b. Fertilized…

A: Meiosis is necessary because Fertilized ovum will have too much genetic material.

Q: The oogonium starts meiosis I but stops at ____________________.

A: Oogenesis is the differentiation of the ovum (egg cell) into a cell capable enough to further…

Q: 1. How will the offspring be affected if one of the gametes or one of the parent carry an impaired…

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Q: Iis the process whereby from each parent fuse to produce a new cell A. Gametogenesis, fertilization…

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Q: Write the Differences Between Mitosis and Meiosis cell division.

A: Since we only answer 1 question in case of multiple question, we’ll answer the first question as the…

Q: What are the importance of meiosis

A: Since we only answer 1 question in case of multiple question, we’ll answer the first question as the…

Q: tion of meiosis II in a secondary oocyte? O a) A surge of Follicle-Stimulating Hormone (FSH)…

A: During oogenesis, the egg completes its development i.e undergoes meiosis I and II. In meiosis 1, a…

Q: 3. Which process (fertilization, meiosis, or mitosis) forms each of the following: Sperm plant…

A: In a life-cycle, cell division is most important for the reproduction process. First, we understand…

Q: 9. Which of the following statements about meiosis is correct? A. Gametes are haploid cells…

A: Meiosis is a type of cell division in which the parent cell is divided into four daughter cells such…

Q: 2. Why is meiosis in human females described as asymmetric?

A: Hi, as per our guidelines, we will answer one question at this time. We kindly request you to post…

Q: 1. How many spermatids are formed from 10 spermatogonium B?  a. 20 b. 40 c. 80 d. 160 2. Oogenic…

A: Spermatids These are haploid cells that are produced through the second division of a spermatocyte.…

Q: 3. Which of the following is NOT part of sexual reproduction? a. one parent organism b. two parent…

A: Reproduction is the biological process by which new organisms or offspring are produced from their…

Q: 1. How many spermatids will be formed from 4 primary spermatocytes? __1. If dog’s body cells have 78…

A: All living organisms are made up of cells. The cells are the basic structural and functional unit of…

Q: 1. The rubella virus causes German measles. If a pregnant woman is is infected by the rubella virus…

A: Introduction  Rubella, often known as German measles or three-day measles, is an infectious disease…

Q: 2. Describe one function, brought about by the process of meiosis that spermatogenesis and oogenesis…

A: Introduction The process by which diploid precursor cells undergo meiotic division to generate…

Q: Outline the events of oogenesis. Why is oogenesis a significant process for egg production

A: A small group of cells in the outer region of the cortex are developed into millions of primordial…

Q: Down's syndrome occurs when either the sperm or the ovum has too many chromosomes. This usually…

A: Abnormalities in the number of chromosomes are easily identifiable from the karyogram.  This…

Environmental health and hazards

An organism's environment is the environment in which it lives and has an impact on its well-being. The World Health Organization (WHO) defines environmental health as "those aspects of public health, such as quality of life, that are influenced by physical, chemical, biological, social, and psychosocial components in the environment." Environmental health is concerned with both natural and man-made settings in order to enhance public health. Environmental science, occupational medicine, toxicology, and epidemiology are the key subdisciplines of environmental health.