S 138. A male newborn has albinism. The most likely cause of the lack of pigmentation in this newborn is an abnormality in cells arising from which of the folowing? A) Neural crest B) Somatic mesoderm OC) Somitic dermatome OD) Somitic myotome OE) Splanchnic mesoderm OF) Surface ectoderm

Q: The Mullerian ducts in female mammalian embryos develop into…   a)   The vas deferens   b)   The…

A: During embryonic development, the reproductive system goes through a complex differentiation process…

Q: Of the three polar bodies , one came from an unequal division of the ovum , but from where did the…

A: The process of the formation of the egg within the ovary is called oogenesis. This process is also…

Q: Select your answer from the drop-down menu. Substances from fetus and mother are exchanged across…

A: Explanation: Glucose is the major energy substrate provided to the placenta and fetus. It is…

Q: At what age is it appropriate to introduce solid foods into an infant's diet? A) Immediately after…

A: It's very important to follow the recommended guidelines of the American Academy of Pediatrics and…

Q: 2. A 33-year-old woman undergoes a hysterosalpingogram to evaluate infertility. If the uterine tubes…

A: Hysterosalpingogram (HSG) is one of the early tests performed on women of childbearing age who fail…

Q: is in vitro fertilization a humen disease?

A: In vitro Fertilization (IVF) is a type of Assisted reproductive technology (ART). This implies…

Q: Of the three polar bodies , one came from an unequal division of the ovum , but from where did the…

A: The process of the formation of the egg within the ovary is called oogenesis. This process is also…

Q: 1)Development is just another name for fertilization a)True b)False 4)A fertilized egg is the same…

A: Fertilization is a term used to denote the fusion of male gamete i.e. sperms/pollens with the female…

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: Why is a second polar body expelled after fertilisation?   a)   To remove excess cytoplasm   b)…

A: The second polar body is a small, non-functional cell that is produced during oogenesis after the…

Q: 3. During the course of successful prenatal development, a human organism begins as a(n): A) Zygote…

A: The goal of developmental biology is to comprehend how an organism develops—how a single cell…

Q: A full-term newborn has respiratory distress. Ultrasonography shows that the abdominal organs have…

A: The objective of the question is to identify the embryonic structure whose abnormal development…

Q: During what embryonic stage can morphogenesis be seen?   Question 9 options:   a)  The morula…

A: Basically morphogenesis means the development of organs and organ system by the process of…

Q: Ch. 8: Which of the following is a possible symptom or outcome of Polycystic Ovary Syndrome (PCOS)?…

A: In the case of PCOS, the ovaries produce abnormally high levels of androgens, the male sex hormones…

Q: 17. In the last 8 weeks of gestation, extramedullary hematopoiesis is most likely to occur in which…

A: Introduction  The haematopoiesis is the process of formation of components of blood in the bone…

Q: 20. Human placenta is derived from a) amnion b) chorion c) allantois and chorion d) allantois

A: Introduction  The placenta is an organ that develops in the uterus during pregnancy. This structure…

Q: In the absence of sex hormones during fetal development, the human body will: A) develop a…

A: The objective of the question is to understand the role of sex hormones in the development of the…

Q: 44 A full-term newborn has respiratory distress. Ultrasonography shows that the abdominal organs…

A: Abnormal embryonic development is when an embryo has genetic abnormalities and and its effects the…

Q: 40. A 9-month-old boy is brought to the office for a follow-up examination. He has had six episodes…

A: Parathyroid gland is located at the back of the thyroid glands located in the neck region.…

Q: Section 2: 136. A newborn has a hypoplastic phallus. Chromosomal analysis shows a 46,XY karyotype.…

A: The objective of the question is to identify the pattern of gonadal hormone production that would…

Q: Considering that Noor and Hamza do produce a first child and name her Roop, what is the likelihood…

A: PKU (Phenylketonuria) is an inherited disorder caused by a lack of the enzyme phenylalanine…

Q: What is true of the Progress Zone model? a) the length of time a cell resides in the progress zone…

A: Introduction: * The classical progress zone model proposes started that the limb bud grows  under…

Q: Fertilization made artificially in the laboratory is called ___________.a) Invitro fertilization b)…

A: When an egg of a female unites with the sperm of the male, the formation of a fertilized cell…

Q: Which of the following type of placenta is found in humans? a) Discoidal b) Zonary c) Diffuse d)…

A: Introduction - During the pregnancy phase, the placenta is an organ that grows inside the uterus. A…

Q: The procedure in which sound waves are converted to images of the fetus is called........... a)…

A: During pregnancy the health and situation of the foetus can be monitored and the images of the baby…

Q: In identifying the marginal cells of the tunicate embryo, which of the following is the role of the…

A: The seas squirts are examples of tunicates which are a type of invertebrates found in Marine…

Q: 25) Compared to asexual reproduction, the main advantage of sexual reproduction is that it: A)…

A: Question 25)  - Compared to asexual reproduction, the main advantage of sexual reproduction is that…

Q: Which tissue type or organ is correctly matched with its germ layer tissue? A) nervous–mesoderm B)…

A: Introduction :- The mesoderm is a germ layer that develops between the ectoderm, which produces skin…

Q: Which of the following primary germ layers nervous tissue develops from? a ) yolk sac b) endoderm…

A: The life of a human being begins in the womb as an embryo and undergoes various developmental stages…

Q: 87. A 25-year-old woman delivers a healthy male newborn after an uneventful pregnancy. The umbilical…

A: The objective of the question is to identify the most likely implication of finding two vessels in…

Q: Which of the following cell part is absent in a human spermatozoon?   A) nucleus C) cell membrane B)…

A: The sperm head contain a very little cytoplasm and an elongated haploid nucleus which is surrounded…

Q: Which two extraembryonic structures form the placenta in humans? a) chorion and amnion b) amnion and…

A: Placenta is the structure formed between the fetus and the uterine lining of the maternal tissue.…

Q: 299. A 3 month infant is brought to the physician because of an upper respiratory tract infection.…

A: Case summary patient is a 3 month infant with upper respiratory tract infection. Complaint of…

Q: the milk-letdown reflex, which cells are categorized as neuroendocrine cells? a) Sensory neurons in…

A: Neuroendocrine cells are specialized cells that receive neuronal input in the form of…

Q: Map 3 170dB/C 3 A) Ectopic pregnancy B) Endometrioma C) Leiomyoma uteri D) Ovarian cyst E)…

A: 17. Fibroids are benign tumours that develop on the uterine lining or walls. Uterine fibroids affect…

Q: Fertilization: a) Briefly describe the process of fertilization in humans, b) identifying key…

A: Sexual reproduction is the process by which new young ones are produced, by fusion of the genetic…

Q: Ch. 8: Endometriosis: a) usually leads to increased risk for uterine cancer b) may lead to…

A: Introduction :  Endometriosis is a condition in which the endometrium, tissue that normally develops…

Q: 8.) Removal of the corpus luteum from an ovary will cause which of the following changes? a.)…

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

Q: Which structure of the amniotic egg compartmentalizes wastes? a) Chorion b) Amnion c) Allantois d)…

A: The reptiles, birds, and mammals are called amniotes as they lay amniotic eggs. The development of…

Q: 1) Which statement below about asexual reproduction is FALSE? a) With asexual reproduction,…

A: Introduction :  Reproduction is a process by which one organism produces offsprings. There are two…

Q: of 145 21. During the second half of pregnancy, amniotic fluid is elaborated primarily by which of…

A: The question is asking about the primary source of amniotic fluid during the second half of…

Q: 1)Events in sexual reproduction after the formation of zygote are called a)post fertilisation…

A: In a process known as sexual reproduction, two gametes—one with a single set of chromosomes and the…