7 How mutations in a gene can affect itsexpression?

Q: 1. How important is cell adhesion for the development of mammalian embryo? 2. What is the role of…

A: The fusion of male and female gametes results in the formation of a single-cell zygote. The zygote…

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

A: A female body goes through a reproductive cycle every month. This cycle can end in mainly two ways :…

Q: 5) List the stages of fetal development and what happens at each stage.

A: Every month, a female body goes through a reproductive cycle. This cycle can terminate in one of two…

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: 14. Name the stage of development in this fish embryo..

A: After fertilization diploid zygote (2n) is developed. Then it is undergoes several stages of…

Q: What is a yolk? What is its role in fertilization and development?

A: Extraembryonic membrane: The blastoderm in different species like birds, mammals, and reptiles give…

Q: 5. Which of the following responses is/are regulated by positive feedback mechanism?

A: This question is based on positive or negative feedback mechanisms.

Q: 6. Which of the following is most likely example of the organizing effects of sex an hormones?

A: Sex hormones, also known as sex steroids, gonadocorticoids and gonadal steroids, are steroid…

Q: 5. Do other organs or organ systems develop at the same time? Are they related to the function of…

A: Question number 5 is incomplete, Hence cannot be answered. Answer 6: If the nucleus of a non-motile…

Q: 5. How is milk produced from the mammary glands?

A: Mammary gland function : Regulated by hormones

Q: . Discuss the mechanisms of action and clinical uses of one anti-cancer cytotoxic agent that is…

A: Cytotoxic agents can be classified by their mechanism of action into four major categories:…

Q: 5. The process of maintaining a relatively stable internal environment is called- ----- 6. In a…

A: Animals can be divided into two categories on the basis of their ability to regulate their body…

Q: 20. Identify the structure labeled A and explain how the functioning of structure A is essential for…

A: A fetus refers to an unborn offspring which develops in the uterus of the mother. A fetus develops…

Q: 5. Differentiate between the 3 types of cell cor sing an exampie. a. Paracrine b. Synaptic c.…

A: All of the cells in an organism's body must communicate with one another in order for it to function…

Q: 6. Name the three major derivatives of the ectodermal germ layer.

A: The endoderm (inner layer), ectoderm (outer layer), and mesoderm (middle layer) are the three basic…

Q: 18. What is emasculation? Why and when is it done?

A: Plant hybridization can be defined as the process in which two genetically different species are…

Q: 7. What is the essence of the seemingly contradictory views of how an impaired fetus might be dealt…

A: There are many rules and regulations in all countries about the abortion and infanticide.  Abortion…

Q: 4. How does the normal p53 protein inhibit cancer development?

A: Tumor-suppressor genes code for proteins that repair damaged DNA (preventing a cell from becoming a…

Q: 5. What messages does a gene provide? And how is the language of the gene expressed?

A: A gene can be defined the basic physical and functional unit of heredity. They are made up of DNA.…

Q: 25. Which structure in development is composed of embryonic stem cells? 26. At which stage in…

A: After fertilization, the zygote and their associated membranes, which together called conceptus will…

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: 26. What stage is this? 27. What stage is this? 28. What stage is this? A C E F 29. What stage is…

A: In most animals, the sperm is the haploid male gamete that fuses with the haploid female gamete or…

Q: 1. In what ways does the fetal period of development differ from the embryonic period of…

A: Foetal development and embryonic development are the 2 important stages in the life cycle . Due to…

Q: 1. Distinguish between a familial and a sporadic cancer

A: Cancers are group of diseases that caused by abnormal cell growth. This can be sporadic or familial…

Q: 22. Normal cellular death that is necessary for normal development and morphogenesis is referred to…

A: Introduction Cell Death Occurs When A Biological Cell Stops Performing Its Activities. This Could Be…

Q: Explain the difference between adaption and growth and development.

A: Adaptation The changes in the body according to the changing environment to increase rate of…

Q: What are the different mechanisms the egg employed to ensure that only one sperm cell will fertilize…

A: Polyspermy refers to fertilization of an egg cell by numerous sperms. It is avoided during…

Q: List the stages of development once the egg is fertilized

A: The cycle in which a life form creates from a solitary celled zygote to a multi-cell creature is…

Q: 14. What are the two types of gene therapy?

A: Gene therapy is defined as a novel procedure of introducing desired genes in human body through…

Q: Do you believe aborted fetal tissue should be used for transplant purposes? Why or why not? Do you…

A: In transplantation, organs from on person are transplant to another person.when organs of any person…

Q: what are the stages of fetal development and what happens at each stage?

A: The process of prenatal or fetal development occurs in 3 stages: germinal stage, embryonic period…

Q: 5. What are the two major constraints on further reductions in CT scan time?

A: CT scans are quick, painless and safe generally. But there's a small risk that a patient could have…

Q: 1. What values are at odds in the controversy about the use of fetal stem cell in research? How does…

A: Stem cells are the types of cells that has the potential to grow into different types

Q: What are some other examples of positive feedback loops in the human body?

A: The Positive feedback is a cycle where the end results of an activity cause a greater amount of…

Q: 5   explain the role of a woman in reproduction and how countries' policies can influence its…

A: 5. *Women have higher earnings and more educational opportunities, the latter of which has been…

Q: 5. What are the four extraembryonic membranes in fetal development? A. O acrosome, placenta, plasma…

A: During the development of chick and other vertebrates, certain specialised embryonic tissue or…

Q: 1. What are oncogenes and tumor-suppressor genes? How are they involved in carcinogenesis? What is…

A: To explain: To explain about oncogenes and tumor-suppressor genes, carcinogenesis, and the relation…

Q: What are the functions of the interstitial cells and sertoli cells in sperm development?

A: Introduction  The two basic requirements of the organisms two sustain life are Food and…

Q: Discuss hormonal regulations in gametogenesis of males and females.

A: Introduction: Gametogenesis is the process of the development of gametes. In females, ovaries are…

Q: 17. A researcher discovers a certain genetic disorder is appearing more often in males than in…

A: Genetics is the study of genes, their interactions, and the effect of environment on genes. Broadly…

Q: 18. What if you or a member of your family, your child had one of these disorders? What if your…

A: Introduction  The letters used to identify the DNA nucleotide bases make up the whole word…

Q: What specifically will happen if multiple sperm were able to fertilize one egg during fertilization?

A: Introduction  A zygote is formed by the fusion of male gamete (Sperm) with the female gamete…

Q: how Cancer Develops and how cancer affects the cell cycle.  2. Discuss your views on how to prevent…

A: Introduction:- A disease that abnormal cells divide uncontrollably and destroy body tissue. It's…

Q: 7. Some animal species are completely or primarily asexual. What are two conditions that appear to…

A: Introduction:- Asexual reproduction produces offspring in certain animals, while sexual reproduction…

Q: 8. Which of the following statements about oxytocin is correct? A. Dilation of cervix and baby…

A: Oxytocin is a hormone delivered by the pituitary organ that causes expanded expansion of the uterus…

Q: What is the importance of understanding the structures and functions of molecules involved in the…

A: By knowing and understanding the basics about cancer and following the recommended guidelines for…

Q: The term homeostasis attempts to convey two major ideas about physiology. Briefly describe these two…

A: The tendency of a system to retain internal stability as a consequence of the coordinated response…

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…

Substance Abuse

Substance abuse refers to the use of illegal drugs in excessive quantities, as well as the misuse of legal substances such as prescription or over-the-counter pharmaceuticals or alcohol for purposes other than those intended. Drug addiction, also known as substance use disorder, is a disease that affects the brain and behavior of a person. It leads to a failure to control the use of any drug or prescription, legal or illegal.