a womans ovum willl complee meiosis 2 only if fertilization has occured
a womans ovum willl complee meiosis 2 only if fertilization has occured
Homework Answers
Primary oocytes are formed prenatally and reain suspended in prophase of meiosis I for years until the onset of puberty. An oocyte completes meiosis I as its follicle matures (during ovulation) resulting in a secondary oocyte and the FIRST polar body. After ovulation, each oocyte continues to metaphase of meiosis II. Meiosis II is completed only if fertilization occurs, resulting in a fertilized mature ovum and the second polar body.
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a womans ovum willl complee meiosis 2 only if fertilization has
occured
If oocytes are already at metaphase 2 during ovulation and at fertilization meiosis 2 completes with...
If oocytes are already at metaphase 2 during ovulation and at fertilization meiosis 2 completes with help from the sperm, then how does the paternal DNA from the sperm “mix” with the maternal DNA if crossing over occurs during meiosis 1?
1. Look at digure 6 and label the arrows that indicate where mitosis, meiosis and fertilization...
1.
Look at digure 6 and label the arrows that indicate where mitosis,
meiosis and fertilization occur
2. Identify the following structures where needed to be labeled.
-sporophyte -male gametophyte (pollen)
-female spores - sperm nucles
-female gametophyte - zygote
-egg - embryo
-male spores
DON Female sporangium Female cong 06 fonly one develops) (only one develops) Germinating pollen Seed Female gametangium (in) Figure 6. Pine life cycle
20. How many cells are formed at the end of Meiosis I & how many copies...
20. How many cells are formed at the end of Meiosis I & how many copies of chromosomes does each cell have?_ 21. Is DNA copied before Meiosis II? _ 22. How many cells form at the end of Meiosis II and how many chromosomes do they contain? • 23. Oogenesis ultimately gives rise to (one ovum, four ova) with the Chaploid, diploid) number of chromosomes. 24. A sperm cell is a (gamete, zygote), and is (haploid, diploid). 25. When...
The following diagram shows nondisjunction in either Meiosis I or Meiosis II. The cell has only...
The following diagram shows nondisjunction in either Meiosis I or Meiosis II. The cell has only one pair of homologous chromosomes. If fertilized with a normal healthy gamete, which cell(s) will give rise to an individual that has 2n=3? യറ്റാത Select one: a. only B b. A, B, and D C. A, C, and D d. A and D O e. only C
The following diagram shows nondisjunction in the Meiosis or Meiosis IL The cel has only one...
The following diagram shows nondisjunction in the Meiosis or Meiosis IL The cel has only one part of homologous chromosomes fertilized with a normal healthy gamete, which cell will most likely give normal offspring 26 99 88 se 0 0 DOQO | QOQO Select one a AC and D b. only CA and D d. A. and D e.only
Question 12 (2 points) Which of the following events of meiosis leads to the creation of...
Question 12 (2 points) Which of the following events of meiosis leads to the creation of haploid cells by the end of Telophase 1 of meiosis? 1) sister chromatids separate during Anaphase II 2) homologous chromosomes synapse and cross over during Prophase 3) homologous chromosomes separate during Anaphase 4) random fertilization 5) nondisjunction
Qa List Parag.... Calibri . 12. BIV A A EEEEEE 24) An abnormality occurs during Meiosis...
Qa List Parag.... Calibri . 12. BIV A A EEEEEE 24) An abnormality occurs during Meiosis in which one gamete lacks a sex chromosome. After fertilization, the resulting zygote has only a Y chromosome (written as YO). What is the outcome? a. Turner's syndrome b. Clinical Lycanthropy C. Klinefelter Syndrome d. It will not survive O
When does the separation of homologous chromosomes occur? • O A. Meiosis 2 • O B....
When does the separation of homologous chromosomes occur? • O A. Meiosis 2 • O B. Before Meiosis • . C. Meiosis 1 D. After Meiosis Reset Selection If a cell has 24 pairs of chromosomes in its diploid state, how many chromosomes will it have after Meiosis 2? • • • • A. 24 B. 12 C. 48 D.6 Dan What structure is responsible for separating the chromosomes during Meiosis? A. Spindle Fibers B. Cytoplasm C. Metaphase plate •...
Which bormone has the lowest concentration on which day? a.) hormone A on day 4 e...
Which bormone has the lowest concentration on which day? a.) hormone A on day 4 e ) hormone C on day 12 b.) hormone B on day 2 d) hormone D on day 20 development of an 10. Which sequence represents the correct order of processes that result in the formation embryo? a.) meiosis-> fertilization> mitosis c.) fertilization-> meiosis mitosis and b.) mitosis-> fertilization-> meiosis 11. The diagram below represents stages in the processes of reproduction and development in an...
QUESTION 17 0.5 points ✓ Saved Invitro fertilization has allowed many women who would not otherwise...
QUESTION 17 0.5 points ✓ Saved Invitro fertilization has allowed many women who would not otherwise been able to have children to conceive and bear children. Use the principle of Deontology to determine if invitro fertilization procedures are ethical. Focus on the following components of Deontology (remember that yes and no answers only to these questions will not earn points) What is the intent of these procedures 1. Why (or why not) is the intent in line with ethical considerations...
1.
Look at digure 6 and label the arrows that indicate where mitosis,
meiosis and fertilization occur
2. Identify the following structures where needed to be labeled.
-sporophyte -male gametophyte (pollen)
-female spores - sperm nucles
-female gametophyte - zygote
-egg - embryo
-male spores
DON Female sporangium Female cong 06 fonly one develops) (only one develops) Germinating pollen Seed Female gametangium (in) Figure 6. Pine life cycle
20. How many cells are formed at the end of Meiosis I & how many copies of chromosomes does each cell have?_ 21. Is DNA copied before Meiosis II? _ 22. How many cells form at the end of Meiosis II and how many chromosomes do they contain? • 23. Oogenesis ultimately gives rise to (one ovum, four ova) with the Chaploid, diploid) number of chromosomes. 24. A sperm cell is a (gamete, zygote), and is (haploid, diploid). 25. When...
The following diagram shows nondisjunction in either Meiosis I or Meiosis II. The cell has only one pair of homologous chromosomes. If fertilized with a normal healthy gamete, which cell(s) will give rise to an individual that has 2n=3? യറ്റാത Select one: a. only B b. A, B, and D C. A, C, and D d. A and D O e. only C
The following diagram shows nondisjunction in the Meiosis or Meiosis IL The cel has only one part of homologous chromosomes fertilized with a normal healthy gamete, which cell will most likely give normal offspring 26 99 88 se 0 0 DOQO | QOQO Select one a AC and D b. only CA and D d. A. and D e.only
Question 12 (2 points) Which of the following events of meiosis leads to the creation of haploid cells by the end of Telophase 1 of meiosis? 1) sister chromatids separate during Anaphase II 2) homologous chromosomes synapse and cross over during Prophase 3) homologous chromosomes separate during Anaphase 4) random fertilization 5) nondisjunction
Qa List Parag.... Calibri . 12. BIV A A EEEEEE 24) An abnormality occurs during Meiosis in which one gamete lacks a sex chromosome. After fertilization, the resulting zygote has only a Y chromosome (written as YO). What is the outcome? a. Turner's syndrome b. Clinical Lycanthropy C. Klinefelter Syndrome d. It will not survive O
When does the separation of homologous chromosomes occur? • O A. Meiosis 2 • O B. Before Meiosis • . C. Meiosis 1 D. After Meiosis Reset Selection If a cell has 24 pairs of chromosomes in its diploid state, how many chromosomes will it have after Meiosis 2? • • • • A. 24 B. 12 C. 48 D.6 Dan What structure is responsible for separating the chromosomes during Meiosis? A. Spindle Fibers B. Cytoplasm C. Metaphase plate •...
Which bormone has the lowest concentration on which day? a.) hormone A on day 4 e ) hormone C on day 12 b.) hormone B on day 2 d) hormone D on day 20 development of an 10. Which sequence represents the correct order of processes that result in the formation embryo? a.) meiosis-> fertilization> mitosis c.) fertilization-> meiosis mitosis and b.) mitosis-> fertilization-> meiosis 11. The diagram below represents stages in the processes of reproduction and development in an...
QUESTION 17 0.5 points ✓ Saved Invitro fertilization has allowed many women who would not otherwise been able to have children to conceive and bear children. Use the principle of Deontology to determine if invitro fertilization procedures are ethical. Focus on the following components of Deontology (remember that yes and no answers only to these questions will not earn points) What is the intent of these procedures 1. Why (or why not) is the intent in line with ethical considerations...
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