Which of the following is an example of a teratogen?

Q: Define human placental lactogen?

A: Placenta is the organ which develops in the uterus during pregnancy. It provides oxygen and…

Q: If a woman is a carrier of a certain x linked disease and one of her X chromosomes is turned off in…

A: As according to the above question; women is a carrier of Certain X linked disease.for example ;…

Q: If a male has fragile X syndrome, is his mother or father more likely to be a carrier for the…

A: The genetic disorder Fragile X syndrome (FXS) is characterised by mild-to-moderate intellectual…

Q: OSH 1

A: introductio   An OSHA examination includes wellbeing and security consistence officials visiting…

Q: Define a teratogen and provide several examples of teratogens.

A: BASIC INFORMATION  ENZYMES They are the catalyst. They help in accelerating the chemical reaction.…

Q: Why are children less likely to develop carcinomas?

A: Numerous body organs work in a coordinated manner. An abnormal condition that hinders optimum body…

Q: Early pregnancy tests used antibodies to detect the presence of human chorionic gonadotropin (hCG)…

A: The outermost membrane that surrounds the embryo is known as chorion. From the outer fold of the…

Q: Which of the following statements is true?

A: The chemical reactions that take place within a biological cell are called biochemical reactions.…

Q: There are 5 primary oocytes that will undergo cell division, How many functional secondary oocytes…

A: BASIC INFORMATION  OOGENESIS It is the formation of mature female gametes. This process is…

Q: What are the hormones involved in milk production and milk secretion? Discuss the hormonal control…

A: The mammary gland is located in the anterior thoracic wall. They are composed of the tubuloalveolar…

Q: What technology would enable a fetus born in the fourth month to survive in a laboratory setting?…

A: First of all, it is nearly impossible that four months (12 or 13 weeks) fetus can survive outside…

Q: Why does testing for hCG (human chorionic gonadotropin)work as a pregnancy test early in pregnancy…

A: The hCG refers to the Human chorionic gonadotropin is a hormone produced by surrounding cells of a…

Q: What cells are responsible for the blood-testis barrier and what are some unique features of these…

A: The cell is the basic unit of life. The tissue is a group of cells that perform a specific function.…

Q: Describe the role of pregnancy hormones during human pregnancy. What hormones prepare the mammary…

A: Several hormones are secreted from the placenta to maintain the pregnancy and to prepare the body…

Q: Why are sex hormones necessary for reproduction?

A: Sex hormones are primarily produced by the gonads or sex glands in male and female individuals and…

Q: Which of the following statements are TRUE? *

A: Answer is II and III only.

Q: How does the risk of chromosomal abnormality in a child change with themother’s age?

A: Chromosomal anomaly, abnormality or aberration refers to the abnormality in the structure and number…

Q: What is the formula for a female with Turner syndrome?

A:

Q: The gene that determines whether a child becomes a Male or a female is located on a specific pair of…

A: There are two types of chromosomes found in our body, autosomes and allosomes.  Autosomes are found…

Q: What is prometaphase,

A: Prometaphase:               Under the hood of second phase of mitosis, the process that separates…

Q: A human male named Phillip has an X chromosome that ismissing its Xic. Is this caused by a new…

A: Chromosomes are the packaged form of DNA associated with proteins. They are the genetic material…

Q: Why is haemophilia will always be passed on to males

A: Haemophilia is an X linked genetic disorder where a mutation in the blood-clotting gene results in…

Q: which are major mechanisms by whichchromosomal rearrangements take place

A: A chromosomal rearrangement is a mutation that is a type of chromosome abnormality involving a…

Q: pros and cons of early testing of chromosomal condition in pregnancy?

A: The chromosomal condition of an embryo is determined by the amniocentesis process. By this process…

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: During spermatogenesis, which of the following options describes when cytokinesis would occur?…

A: Meiosis is a process where single germ cell divides twice to produce 4 cells containing half of the…

Q: What is the formula for a female with cri-du-chat syndrome?

A: Cri-du-chat syndrome is a rare chromosomal anomaly. It is considered a rare genetic disease. Females…

Q: Which of the following rows correctly identifies the source of placental formation?

A: During pregnancy, the placenta attaches the developing fetus to the uterine wall of the mother. It…

Q: What is the formula for a female with down syndrome?

A: Chromosonal abnormality is the disorder in which instead of normal Chromosomal number , they are…

Q: A male fetus, a male baby less done 1 month old and a 60 year old man of weight 90Kg. Who has the…

A: Male sex hormones Androgen are steroid hormones produced under the control of ICSH(Luteinizing…

Q: Explain the inactivation of the X chromosome or Lyonization.

A: A classic example of X inactivation is seen in calico cats. As a result tortoiseshell coat pattern…

Q: The ability to roll the tongue to form a “tube” results from a dominantgene. Suppose that a woman…

A: Dominant allele is a particular variant of a trait which for some reason express itself strongly all…

Q: The pill RU-486 produces abortions by blocking the effects of progesterone. Why would blocking…

A: The RU 486 is interfering in  functioning of progesterone  The progesterone is an steroidal hormane…

Q: What is the first polarbody? How different is it fromthe oocyte II?

A: Meiosis is a kind of cell division that takes place in sexually reproducing organisms which results…

Q: describe Mechanisms leading to maternal inheritance oforganelles

A: A form of inheritance in which the traits of the offspring are maternal in origin due to the…

Q: How does the structural and biochemical changes during spermiogenesis help the sperm in…

A: Spermiogenesis is a process of maturation of spermatids into the mature spermatozoa.It is the final…

Q: Seeing that the placenta acts as a barrier protecting the baby from harmful substances the mother…

A: Placenta is the ultimate connection between mother and the foetus.All the nutrients and other…

Q: Why are abnormal Autosome numbers usually lethal?

A: Aneuploidy refers to the presence of abnormal number of chromosomes in a cell due to nondisjunction…

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: why is it important that the gametocytes is unique from the other?

A: Introduction : During gametogenesis, eukaryotic germ cells called gametocytes undergo mitosis to…

Q: Name the structure that produces testosterone.

A: Glands are defined as the group of specialized cells that are able to produce or secrete the…

Q: Why Is it imperative for a woman to take folic acid if she is planning to become pregnant?

A: Folic acid is the synthetic form of vitamin B9 or folate, one of the essential nutrients that should…