How many somites are there in mouse? In chicks? In humans

Q: Female bees are diploid, and male bees are haploid. The haploid males produce sperm and can…

A: Ploidy refers to the number of chromosomes present in the nucleus of a cell. In normal somatic…

Q: Hormonal birth control pills contain low doses of estrogen and progesterone.  Taking these pills…

A: FSH helps control the menstrual cycle and stimulates the growth of eggs in the ovaries.  LH triggers…

Q: In a newly fertilized egg, the vitelline layer O secretes hormones that enhance steroidogenesis by…

A: In Sea urchin, a capacitated sperm first crosses zona pellucida layer then it passes through…

Q: hy is it that the first trimester of pregnancy the most critical in humans? How will you relate it…

A: It is the early phase of pregnancy. The first trimester is marked as 1st day after your last period…

Q: Compare oogenesis to spermatogenesis. How are the two processes similar? How do they differ?

A: Spermatogenesis is the reproductive stage where haploid cells are formed from a diploid stem cell…

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: A classical experiment studying the fate determination of stem cells in the developing embryo uses…

A: Answer :- Option ( D) is correct. - The organs arising from quail somites develop in the reverse…

Q: GENESIS: Give the significance of the following: 1. sperm mitochondrial migration:  2. Nucleolar a

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

Q: During oogenesis, oogenetic inhibitors must be deactivated after full growth to allow the

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

Q: Which statement below concerning oogenesis is FALSE? About half the oogonia complete mitosis between…

A: Introduction  The life starts from single cell called Zygote. A zygote is formed by the fusion of…

Q: Describe the development of reproductive organs in a fetus of each gender. Which genes, gene…

A: Hello! Since you have posted multiple questions, we are answering only the first two questions.…

Q: What is the source of different cytoplasmic determinants present in the embryo after fertilization?…

A: Some post-embryonic cells also include cytoplasmic determinants, which cause cytoplasmic asymmetries…

Q: There are 6 major events in fertilization. Discuss the process of fertilization or conception, with…

A: Fertilization is a process in which male pro nuclei and female pro nuclei come together(fuses that…

Q: The formation of three germ layers is called Select one: a. gastrulation b. pluripotency c.…

A: A zygote is the fertilized egg that is formed by the fusion of the egg and the sperm via the process…

Q: Somites, in the embryo, give rise to muscle. Is the statement above true or false?

A: Somites are found around neural tubes in the embryonic stage of a vertebrate. Somites are made up of…

Q: Which of the following statements is TRUE about corpus luteum? O A. Secretions of the corpus luteum…

A: The corpus luteum produces progesterone, which is necessary for the embryo's growth. The placenta…

Q: How do you expect Kartagener syndrome leads to infertility?   A. The lack of a plasma membrane means…

A: Primary ciliary dyskinesia(PCD) is a rare autosomal Recessive genetic disorder. PCD is a genetically…

Q: What barriers must a sperm cross in order to fuse with the egg? How does the sperm accomplish this…

A: The union of two haploid gametes, the spermatozoa and the oocyte, hereafter referred to as the egg,…

Q: The individual cells are called blastomeres. Are all of the blastomeres the same size in these early…

A: After fertilisation of sperm & ovum, zygote s produced. This zygote then undergo various…

Q: give the Significance  of the ff   Cleavage to embryogenesis       CAMs and Junctional…

A: * cleavage means  division of cells in  embryo . * The cells formes as result of  cleavage are…

Q: Which of the following cells is haploid? (a) primary oocyte (b) secondary oocyte (c) oogonium (d)…

A: Answer - In meiotic division of cells, haploid daughter cells are produced. They have one pair 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: What is the role of the SRY gene on the Y chromosome? a. Production of Mullerian hormone proteins b.…

A:

Q: A- BC C- D

A: Reproductive system and urinary system are connected in such a way in these both system use common…

Q: Rarely, two sperm may penetrate a secondary oocyte. Do youthink this fertilized cell will survive…

A: Fusion of only one sperm takes place with the egg.

Q: differentiate the frog and mammalian spermatogenesis. Spermatogenesis Frog Mammal

A: Spermatogenesis is the development of haploid sperm cells from germ cells in the testis'…

Q: The endometrium thickens during the uterine cycle, but disintegrates if the egg is not fertilized.…

A: Menstrual cycle is the cycle of changes in hormone levels and endometrial lining of female…

Q: If one follows 50 primary oocytes in an animal through theirvarious stages of oogenesis, how many…

A: Gametogenesis is a process through which male and female gametes (sperms and eggs) are formed in the…

Q: In human embryogenesis, how many hours does it take after fertilization to form the following; a.…

A: Embryogenesis  Embryogenesis refers to the stages of developing embryo. The embryogenesis start just…

Q: What means to retain the ability to become any cell type—including germ-line cells and gametes—when…

A: Stem cells are the cells that are capable to convert to different cell types. These are present in…

Q: Which of the following is true about Organogenesis? Choose all possible answers. anterior pituitary…

A: Organogenesis Organogenesis is defined as an important event of embryogenesis (embryo development)…

Q: 14. Female gonads that produce eggs and the female sex hormones. About 3 cm by 1cm in size 15.…

A: 14) Ovary : these are female primary sex organs and here oogenesis or process of formation of female…

Q: 7) List 2 processes that the placenta takes over by the end of the first trimester in humans.

A: The placenta takes over the production of progesterone and human chorionic gonadotropin by the end…

Q: What is the third layer that forms as a result of gastrulation in some animals? mesoderm endoderm…

A: Gastrulation is the cycle during early stage advancement that changes the incipient organism from a…

Q: Birth control pills commonly provide excess progesterone that serves to inhibit (suppress) the…

A: The major hormones involved in the Menstrual Cycle are: FSH: This hormone is responsible for the…

Q: fertilized ovum of a dog

A: (Canine) egg treatment  Ovulation in many bitches happens between 48-60 and 72 h from the beginning…

Q: Which statement relating to frog gastrulation is INCORRECT? a. A second set of bottle cells…

A: Embryonic development refers to the division in zygote and growth that ultimately goes through…

Q: Does the male gonad secrete something that affects male differentiation? In this experiment, the…

A: The gonads, the first reproductive organs, are the testes within the male and therefore the ovaries…

Q: in mammals, the luteinizing hormone has what impact on gamete development? select all that apply.…

A: Luteinizing hormone is produced form the Anterior pituitary gland.It is produced from the…

Q: Which of the following describes the role of Luteinizing hormone in the ovarian cycle? o Inhibits…

A: The hormones are basically secreted from the ductless glands called the endocrine glands. These…

Q: How many follicle cells will fit inside? Is there an abundance of yolk within the cytoplasm of the…

A: Oocyte It is an immature ovum or egg cell which is a female gametocyte or germ cell. It is involved…

Q: How did we learn about the levels of gene regulation involved in vulval development in C. elegans?

A: The development of the vulva of C. elegans occurs during postembryonic development which occurs from…

Q: Trace the pathway of the ova of the female frog from the place of production up to the place of…

A: Introduction:- The ovaries produce the female egg cells, called the ova or oocytes. The oocytes are…

Q: explain the developmental processes that will happen to the fertilized ovum of a dog or any animal

A: The individual entity that embodies the attributes of life is known as an organism. There are two…

Q: During morphogenesis, gastrulation does which of the following? A. Gastrulation produces the…

A: Several stages are involved in the development of a baby from a zygote during pregnancy. It begins…

Q: A classical experiment studying the fate determination of stem cells in the developing embryo uses…

A: Introduction Muscles are a type of soft tissue. muscles are made up of a lot of flexible fibres.

Q: Which statement below concerning oogenesis is FALSE? About half the oogonia complete mitosis between…

A: Oogenesis refers to the process of the formation of the female gametes inside the women. The process…

Q: What are two important differences between the processes of spermatogenesis and oogenesis in…

A: The process of formation of gametes is called as gametogenesis. In the diploid organism, the gametes…

Q: Gastrulation occurs to form which three tissues? O hypoblast O ectoderm mesoderm O endoderm O B, C,…

A: During the early stages of embryo development, a multitude of signals are being released, some of…