The process results in four daughter cells that are haploid, which means they contain half the number of chromosomes of the diploid parent cell. Meiosis has both similarities to and differences from mitosis, which is a cell division process in which a parent cell produces two identical daughter cells.
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Which of the following is accurate of the comparison between oogenesis and spermatogenesis?
Which of the comparisons between oogenesis and spermatogenesis is accurate? A mature ovum is not produced in the absence of sperm, but sperm are produced regardless of what the ova are doing.
Which outcome would be the most likely if androgen receptors on cells in the hypothalamus and anterior pituitary suddenly could not bind androgen?
Which of the following would be the most likely outcome if androgen receptors on cells in the hypothalamus and anterior pituitary suddenly could not bind androgen? Sperm production would increase.
What is the term for the objects inside the white dotted box quizlet?
What is the term for the objects inside the white dotted box? one homologous pair of chromosomes.
How many chromosomes are there during mitosis?
Once mitosis is complete, the cell has two groups of 46 chromosomes, each enclosed with their own nuclear membrane. The cell then splits in two by a process called cytokinesis, creating two clones of the original cell, each with 46 monovalent chromosomes.
What is the difference between spermatogenesis and oogenesis quizlet?
The basic difference between spermatogenesis and oogenesis is that: one mature ovum is produced in oogenesis, and four mature sperm are produced in spermatogenesis. one mature ovum is produced in oogenesis, and four mature sperm are produced in spermatogenesis.
Which of the following statements is not true about oogenesis?
The statements that is NOT true is (d) Oogenesis is not completed without stimulation from a sperm cell .
Which of the following could be accurately said of oogenesis and spermatogenesis quizlet?
Diploid means the cell has “2n” chromosomes, that is, two of each chromosome. Which of the following could be accurately said of oogenesis and spermiogenesis? Answer is C: Oogenesis occurs before birth while spermiogenesis continues from puberty to death. Both are promoted by FSH.
Which tropic hormone is responsible for controlling the release of follicle stimulating hormone from the anterior pituitary?
ACTH is a polypeptide tropic hormone which is produced and secreted by the anterior pituitary gland (Fig. 1.2) and it stimulates the secretion of glucocorticoid steroid hormones from adrenal cortex cells, especially in the zona fasciculata of the adrenal glands. It is the key regulator of cortisol production.
Which hormones are from the adrenal cortex select all that apply quizlet?
Select all that apply. The adrenal cortex of the adrenal gland secretes mineralocorticoid (aldosterone), glucocorticoids (cortisol, cortisone, and corticosterone), adrenal androgens, and estrogen. The adrenal medulla of the adrenal gland secretes catecholamines (epinephrine and norepinephrine).
Which of the following is the correct abbreviation for the hormone that stimulates the anterior?
Which of the following is the correct abbreviation for the hormone that stimulates the anterior pituitary to secrete ACTH? The hypothalamus secretes corticotropin-releasing hormone (CRH), which stimulates release of ACTH from the anterior pit.
How many chromosomes did you inherit from your father?
We inherit a set of 23 chromosomes from our mothers and another set of 23 from our fathers. One of those pairs are the chromosomes that determine the biological sex of a child – girls have an XX pair and boys have an XY pair, with very rare exceptions in certain disorders.
What do we call a genetic cross that follows two separate characters such as pea seed color and pea seed shape?
Mendel crossed pea plants that differed in two characteristics, such as seed color and shape. A dihybrid cross is a cross in which the inheritance of two characteristics are tracked at the same time. The offspring of such a cross are called dihybrids.
What process in meiosis involves chromatids exchanging parts quizlet?
The correct order of events during meiosis is what? prophase I. During meiosis, segments of nonsister chromatids can trade places. This recombination of maternal and paternal genetic material is a key feature of meiosis.
How many chromosomes are there after meiosis?
At the end of mitosis, the two daughter cells will be exact copies of the original cell. Each daughter cell will have 30 chromosomes. At the end of meiosis II, each cell (i.e., gamete) would have half the original number of chromosomes, that is, 15 chromosomes.
What type of cells are haploid?
Haploid describes a cell that contains a single set of chromosomes. The term haploid can also refer to the number of chromosomes in egg or sperm cells, which are also called gametes. In humans, gametes are haploid cells that contain 23 chromosomes, each of which a one of a chromosome pair that exists in diplod cells.
Is the zygote haploid or diploid?
The zygote is endowed with genes from two parents, and thus it is diploid (carrying two sets of chromosomes). The joining of haploid gametes to produce a diploid zygote is a common feature in the sexual reproduction of all organisms except bacteria.
How many cells are in meiosis?
facts What is meiosis? Meiosis is a process where a single cell divides twice to produce four cells containing half the original amount of genetic information. These cells are our sex cells – sperm in males, eggs in females.
What phase of meiosis do spindle fibers move homologous chromosomes to opposite sides?
Anaphase I: In anaphase I, the attachment of the spindle fibers is complete. The homologous chromosomes are pulled apart and move towards opposite ends of the cell.
What are the normal chromosome numbers of a sperm egg and zygote?
Egg and sperm cells have just 23 chromosomes each. That’s half as many chromosomes as regular cells. Through the process of fertilization, egg and sperm join to make a cell with 46 chromosomes (23 pairs), called a zygote. For each chromosome pair, one homologous chromosome came from each parent.
What are two major differences between oogenesis and spermatogenesis?
Spermatogenesis and oogenesis are the processes of formation of male and female gametes. Spermatogenesis leads to the formation of sperms, whereas oogenesis helps in the formation of ova. The fertilization of sperm and ova leads to the formation of a zygote which further develops into an embryo.
What is the main difference between oogenesis and spermatogenesis in terms of meiosis?
What is the main difference between oogenesis and spermatogenesis in terms of meiosis? -Oogenesis produces three polar bodies, while spermatogenesis produces only one. -The number of functional gametes produced is different. -Oogenesis does not include a second meiotic division.
What are two differences between male and female gametogenesis?
Male gametogenesis occurs inside the testis of males while female gametogenesis occurs inside the ovary of females. In plants, male gametogenesis occurs in antheridia while female gametogenesis occurs in archegonia.
Which is correct for oogenesis?
So, the correct option is ‘ Equal Meiotic division’
What are the 3 phases of oogenesis?
This is created through a process called oogenesis. This happens in the ovaries or female gonads. There are three phases to oogenesis; namely, multiplication phase, growth phase and maturation phase.