Why does it make sense for females to make only one egg cell every time meiosis occurs?

Q: How is it that in meiosis you can end up with four “daughter cells” that are all genetically…

A: Main purpose of Meiosis is the production of gametes or sex cells. In Meiosis ,four daughter cells…

Q: How many days does it normally take from the fertilisation of the egg up to birth of the baby?

A: The normal human gestation period is from thirty-seven weeks to forty-two weeks or 259 days to 293…

Q: What do you mean by acrosome?

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

Q: During Sexual Reproduction what occurs when a sperm cell enters an egg cell

A: Reproduction is the biological phenomenon by which offspring are produced by individual organisms.…

Q: What must happen for a secondary oocyte to complete meiosis

A:

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: If it takes just one sperm to fertilize an egg,why do males make so many?

A: During fertilization, the head of sperm binds to the zona pellucida layer of egg and induce acrosome…

Q: Write one (1) short sentence explaining what happens during each pages of ‘Meiosis I’.

A: Meiosis is a type of cell division which exclusively takes place in sexually reproducing organisms…

Q: Where are egg cells produced in a woman’s reproductive system? ____   Where does fertilization…

A: The biological system of an organism's reproductive system, also known as the genital system, is…

Q: There are 5 primary oocytes that will undergo cell division, How many polar bodies will be formed…

A: Polar body are small cell produced from the primary oocytes during meiosis. Theses polar body do not…

Q: What percentage of the DNA is passed to the offspring in asexual reproduction

A: Deoxyribonucleic acid is a molecule which is composed of two polynucleotide chains that coil around…

Q: The process through which sperm cells are produced is called.............. meiosis fertilization…

A: The process through which sperm cells are produce is called Meiosis.

Q: When does meiosis occur in girls? In boys?

A: Meiosis is where a solitary cell divisions twice to deliver four cells containing a large portion of…

Q: Is this a fertilized sea urchin? why?

A: A sea urchin egg to be fertilized means that it should contain a zygote. Zygote is a diploid…

Q: Each meiosis results in usable eggs in females and usable sperm in males. O A. 1; 1 O B. 4; 4 OC. 1;…

A: Before the process of fertilization, gametes are produced from each male and female through the…

Q: Why should the sperm shrink into an elongated cell with a tail while the egg grows enormously?

A: Introduction :- Most animals generate sperm, also known as spermatozoon or spermatozoa, a male…

Q: meiosis，4 cells are produced and each cell are unique daughter cell.However isn‘t it true that…

A: Meiosis is a type of cell division which undergoes two successive devision. Meiosis 1st ( reduction…

Q: Why does only one sperm fertilize the egg, and why is this important?

A: Fertilization is the process in which gametes (an egg and sperm) fuse to form a zygote. The egg and…

Q: The cells produced at the end of Meiosis are not genetically identical. Why is this important?

A: Cell division is an important process that helps to keep the cells growing in number. This enables…

Q: Why is it necessary for gametogenesis to reduce the chromosome number of the sex cells by one-half?

A: Ans: Gametogenesis: It is the biological process in which haploid or diploid cells divide as well as…

Q: How many sets of chromosomes does each sperm cell carry? How many does each egg cell have? Gametes…

A: As we know all living organisms are made of  basic unit of structure and function called as cell.…

Q: proposed reason for why women go through menopause is _____.

A: The phenomena of Aging differ widely among living things. There are many Evolutionary explanations…

Q: A female egg cell has two outer membranes how does the egg cell prevent polyspermy? if polyspermy…

A: Sexual reproduction refers to the form of reproduction that occurs through the union of male and…

Q: Whee does meiosis takes place

A: Meiosis is the type of cell division in which the number of chromosomes is reduced to half. The…

Q: Why are pregnant women cautioned against cleaning litter boxes?

A: Litter box A litter box, or cat box, is used for collection of urine and feces of cats as well as…

Q: Why must a gamete have only one-half the number of chromosomes found in body cells?

A: Meiosis is a reductional division. It consists of two stages: Meiosis 1 : It is an reductional…

Q: Why is it immoral to culture headless embryos when in fact it can help to help people who need organ…

A: Murder of an individual is considered immoral. On similar terms, an embryo which is cultured to be…

Q: Why do females have Barr bodies?

A: The sex chromosomes present in the males differ from the sex chromosomes present in the females. The…

Q: What do you mean by test tube babies?

A: There are varieties of techniques available for the couples to have their child when they are not…

Q: What is reproductiveisolation?

A: Genetics is the branch of biology that deals with the study of genes, their inheritance patterns,…

Q: What kinds of cells does meiosis produce?     exact copies     unique

A: Cell is the structural and functional unit of life. It undergoes division to form new cells. It is…

Q: Why are most babies born in the spring?

A: The Center for Disease Control and Prevention (cdc) presents birth rate by month data, noting July…

Q: Why do you think asexual reproduction is more common in animals like flatworms and sponges than in…

A: Introduction :- Re-production ( Re means "again" and production means "to produce")  is the process…

Q: Meiosis in males is called . Meiosis in females is called (LT#6)

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

Q: If there are 7 spermatogonium that will undergo cell division, how many primary spermatozoa will be…

A: Spermatogenesis is the process of producing sperms from spermatogonium in the seminiferous tubules…

Q: Why is it necessary for the egg to have changes leading to polyspermy block during fertilization?

A: Polyspermy is a lethal condition in which one egg is feritilized by more than one sperm

Q: Why do we expect that, on average, only one of the offspring that an individual produces survives to…

A: The process of reproduction refers to the production of its own kind. It is carried via asexual and…

Q: What structure is indicated by the letter A in the image below? A sperm spore egg

A: This is a picture of Archegonium which is female reproductive organ in moss. Inside Archegonium egg…

Q: Why does fertilization always occur in a fluid medium in nature?

A: Fertilization is defined as the union of two haploid gametes, the spermatozoa and the oocyte, herein…

Q: How many copies of each gene are found in the diploid cells in a woman’s body?

A: Introduction Any cell contains a specific number of chromosomes it is referred to as ploidy level or…

Q: Why is meiosis important

A: The cell is the fundamental unit of life. For all living beings, this acts as the basic building…

Q: How are the events that take place in spermatogenesis and oogenesis similar? How are they different?

A: Spermatogenesis and oogenesis are the cycles of arrangement of male and female gametes.…

Q: An egg cell originally comes from an unspecialized diploid cell called a(an)… Group of answer…

A: The process of formation of egg cell(ovum) is called as oogenesis. The process of oogenesis occurs…

Q: What would happen to your skin cells if they were produced by meiosis?

A: Growth and reproduction are the two important characteristics of all living forms. Life of all…

Q: Why scientist are not allowed to culture headless baby. What makes it immoral?

A: Culturing microorganisms is generally done with the help of a parent strain and a rich media that…

Q: What is the number of chromosomes in the following cells? Primary oocyte,secondary oocyte, ootid and…

A: Oogenesis actually begins long before birth when there is an oogonium which has diploid number of…

Q: o you think human beings are capable of asexual reproduction? Why or why not?

A: Reproduction is a process in which an organism produces its own similar or identical copies. It is…

Q: why is polyspermy lethal in an egg cell?

A: Polyspermy is defined as the introduction of two or more sperm cells into the cytoplasm of an egg.

Animal Behavior

Animal behavior can be defined as all the things that animals do. In response to a stimulus, an animal performs a certain fixed action pattern, or FAP, of behavior. This response occurs to make the animal more adaptable to change. So, behavior is generally a stimulus-oriented response. A behavior is an expression of the capabilities of the nervous system. A stimulus is determined by the environment, while the nervous system determines a response.