In mammals, primordial germ cells migration ends when they reach the _________________   posterior epiblast   germinal granules   genital ridges   germ plasm   5. allantois

Q: Spermatogenesis usually occurs during the ___________ and continues in the _________ stage in some…

A: * spermatogenis is the process of formation of sperm from germ cells in semniferous tubules of…

Q: Spermatogenesis usually occurs during the ___________ and continues in the _________ stage in some…

A: Note - We are supposed to answer 3 subpart according to our guidelines. Please repost other…

Q: Arrange the cytoplasmic rearrangement of the fertilized egg of the tunicate, Styela partita in…

A: Tunicate  It refers to a marine invertebrate animal that belongs to the member of the Tunicata…

Q: Choose the best of the following The identity of each segment of a developing embryo is…

A: the embryo is the structure formed by the division of zygote. it is the embryo that develops into an…

Q: 2. Compare and contrast gametogenesis of sperm and eggs in mammals. In your comparison, describe…

A: When the survival  time of living organisms is limited then the process which enables their…

Q: 1- If a blastula splits in two and two fetuses develop, what is created?   a. Fraternal Twins…

A: Identical twins are produced when a single zygote splits into two identical zygote and are called…

Q: 1. Explain the plant and animals differences in their reproduction process. 2. Explain the…

A: Difference in reproductive process of plants and animals- plants show asexual mode of reproduction…

Q: Oxygenated blood is :

A: Oxygenated blood is light color blood circulate in arteries

Q: Mammal ovary 1. pointed follicle type? 2. pointed cell? 3. cell origin of #2? 4. cell derivative of…

A: Introduction: In humans, ovaries are primary reproductive structures in females. They occur in pair…

Q: Which of the following is a unique aspect of testicular cancer relative to other cancers? O it is…

A: Testicular cancer is a very rare type of cancer occurring in the male organs that make male hormones…

Q: Match the following terms with their definitions.   Question 7 options: 1 tightly packed sphere of…

A: The development of embryo in human is known as human embryonic development, or human embryogenesis.…

Q: Match the feature or description with the type of animal v Cells divide asymmetrically and not…

A: Protostome and deuetrostome are way to classify organisms based on the formation of anus and mouth…

Q: Female athletes who train intensively often stop menstruating. The important factor appears to be…

A: The reproductive health of individuals is also one factor to determine the overall health of the…

Q: Gestation takes about -____weeks. a) 38-42 b) 44-46 c) 28-30 O d) 48-52

A:

Q: Ovums (female egg cells), can undergo meiosis improperly leading to incorrect segregation of…

A: Cells with chromosome segregation defects that escape apoptosis produce progeny with altered…

Q: .Place the following events of the acrosomal reaction in the correct chronological order. (1) The…

A: The acrosome response is the acrosome's exocytosis, or the fusing of the acrosomal membrane with the…

Q: Body organs first begin to form and function during theperiod of the _________ ; within 6 months,…

A: A zygote is produced after the fertilization of sperm and an egg. Embryo and fetus are terminologies…

Q: Which of these is not correct ? a) In mammals,acrosome reaction occurs when sperm contacts the…

A: In the above question all options are related to fertilization. Fertilization is a process Where a…

Q: 5) The body symmetry that allows for the body to be bisected into equal halves in only one plane is…

A: 5) The body symmetry that allows for the body to be bisected into two equal halves in only one plane…

Q: after two weeks? Select one: Oa. First Three Days After Two Weeks Endometrium Amnion Ob. First Three…

A: Answer. Histologically, the uterus consists of three layers of tissue: Perimatrium, myometrium, and…

Q: During the creation of eggs, only one egg will be viable, the other 3 eventually break down. What…

A: Oogenesis is divided into three stages, which are the Multiplication phase, growth phase, and…

Q: 8) Base your answer on the following information and on your knowledge of biology Folic acid is a…

A: Folic acid is another name for Vitamin B9. It is mainly found in dark green vegetables such as…

Q: 1.Tell me the benefits for each type of reproductive method. 2.Tell me why an organism possibly…

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

Q: 9. It give some ideas on the developmental stages of certain animals * Chemical embryology…

A: It is related to developmental biology and embryology in which different stages of development of an…

Q: 1. What do you notice to the embryos at their earliest stage? 2. Observe the embryos from their…

A: A multicellular organism's embryo is the first phase of development. Embryogenesis is the stage of…

Q: A sperm encounters an egg's jelly coat thus triggering the acrosomal reaction. What is the first…

A: Egg cells are the largest of all the cells in our body and are about 100 microns in diameter. It is…

Q: In protostomes [Select] cleavage occurs and it is [ Select ] In addition, in protostomes th v […

A: Protostomes are groups of animals sharing common ancestors and have a true body cavity (coelom).…

Q: Mesenchymal stem cells are one of the adult stem cells with a germ spesific mesodermal…

A: Stem cell are special group of cells in the body which have the ability to self renew and…

Q: An egg cell and a sperm cell will unite and undergo fertilization to form a diploid zygote. Right…

A: Answer : Option ' C  ' is correct :  Haplontic Life cycle

Q: 2: No: 03: - In living the most certaih A. Gonads B. Hairs C. Distribution of subcutaneous fat D.…

A: Gonads are the male and female sex organs i.e. testis and ovaries respectively. These lie inside the…

Q: 3. Which is TRUE about asexual reproduction? A presence of zygote B. does not involve gametes C.…

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

Q: Based on the results, which conclusion is correct?   A. In sea urchins, only the fate of the…

A: Introduction: 'Sea urchins' also known as 'sea hedgehogs', are small, spiny, globular animals that…

Q: Volume of the sea Urchin egg is 5.2 x 105 µm3 . You fertilize the cells and take measurements of…

A: BASIC INFORMATION  FERTILIZATION  It is the process of the fusion of the male as well as the female…

Q: If an embryo was lacking HOX genes many problems might happen including this.. neural crest would…

A: The Hox genes' function in the embryo is to specify positional uniqueness instead of the formation…

Q: In a femal human, the oogonium forms when the female is a _______________. This happens…

A: Ovaries are female reproductive structures that produce gametes and secrete sex hormones oogenesis…

Q: Why is the ovum so much bigger than a sperm cell? 1)It already contains all the chromosomes that…

A: Eggs are biggest cells in female body which serves as a germ cell. Like a sperm, it contains a…

Q: 21: This respiratory ailment is caused by an infection in the alveoli vhich can build up fluid in…

A: Reproduction is a process of formation of offsprings. It can be sexual or asexual reproduction.…

Q: 8. The major event in the embryonic development of animals that results in a layered embryo is…

A: An embryo is the early stage of development of a multicellular organism. In general, in organisms…

Q: 12.Place the following events of the acrosomal reaction in the correct chronological order.(This is…

A: Acrosomal Reaction:  A sperm must first fuse with the plasma membrane before penetrating the female…

Q: 5. Animals which produce one or two egg cells during a single reproductive cyde are most likely to…

A: The fusion of haploid gametes i.e. the egg and sperm, resulting in the formation of the diploid…

Q: 1. Spermatogenesis is the process in which an animal produces 2. Oogenesis is the process in which…

A: *NOTE: Kindly repost for other questions Dear Student as per the guidelines we are supposed to…

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: Vhich iš true of gastrulation: occurs in Porifera results in a specific embryonic stage O forms a…

A: gastrulation is a phase early in the embryonic development of most animals followed by blastula.

Q: 1. .......................... is an increase in the number of normal cells of an organ or tissue.…

A: 1. HYPERTROPHY is an increase in the number of normal cells of an organ or tissue.

Q: If there are 400M ovum/egg cells in a 1point woman's body, how many primary oocytes are there during…

A: An oocyte is essentially an immature egg. Oocytes becomes mature within follicle. These follicles…

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: Frog Testis 1. pointed cells? 2. cell origin of #1? 3. specific process that produced #1? 4. one…

A: Testes is a male reproductive cell.

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: The secondary cleavage plane is meridional but is found at right angles to the first cleavage plane.…

A: Embryonic Cleavage Fertilization is an event in which male and female gametes fuse to form a single…

Q: In vertebrate animals, spermatogenesis and oogenesis differ, in that 1.) Cytokinesis is unequal in…

A: Meiosis produces the gametes like sperm in male and the ova in the female. When the male sperm comes…