The two male gametes in the pollen tube are derived from the generative nucleus. Do these...
The two male gametes in the pollen tube are derived from the generative nucleus. Do these gametes form as a result of mitosis or meiosis? Explain your answer.
Homework Answers
mitosis
from haploid (generative nucleus) or chromosome number retained or
two (daughter cells) produced.
Add Answer to:
The two male gametes in the pollen tube are derived from the
generative nucleus. Do these...
Question 21 Which of the following is TRUE concerning fertilization in angiosperms? O The pollen tube...
Question 21 Which of the following is TRUE concerning fertilization in angiosperms? O The pollen tube is formed by the egg moving up the stigma toward sperm O One sperm fuses with the polar nuclei to form the endosperm, which is triploid O Pollen germination occurs on the anther O A generative cellgan divide by meiosis to form four egg cells
5. Describe the structure of a pollen grain. What develops from the tube cell within the...
5. Describe the structure of a pollen grain. What develops from the tube cell within the pollen grain? What develops from the generative cell within the pollen grain? 6. What is pollination? Name at least four ways pollen may be transferred from plant to plant.
I just need to fill in the blanks for this paper. If it is too long...
I just need to fill in the blanks for this paper. If it is too long of a question, I understand... just help if you can. Embryogenesis and plant life cycle Plant life cycle shows both similarities and also major differences from animal life cycle. In both cases ……….. (haploid/diploid) (1N/2N) organism goes through to ……….. (mitosis/ meiosis) to produce gametes, but plant life cycle has an extra step in which it produces a ……….. (diploid/haploid) plant before it produces...
Mature flower on sporophyte plant Generative cell Tube cell Ovule w Pollen grains Megasporangium Megaspore Antipodal...
Mature flower on sporophyte plant Generative cell Tube cell Ovule w Pollen grains Megasporangium Megaspore Antipodal cells Central cell Synergids Egg Nucleus of - developing endosperm Zygote Egg nucleus Discharged sperm nuclei Identify the indicated structures in the pine life cycle. Indicate what parts of the cycle are haploid or diploid. Label the two processes taking place in the yellow boxes, and show
Question 1: Please consider gametes in animals. Part a. Are gametes diploid or haploid, and what...
Question 1: Please consider gametes in animals. Part a. Are gametes diploid or haploid, and what process (mitosis or meiosis) forms them? Sketch this process and include this labeled drawing in your submission. Remember that your drawing must not be an exact copy of a published figure, although you may use a published figure as a guide if you reference it. Part b. What occurs when two gametes unite, and what is the ploidy of the resulting zygote? Through which...
BIOL 10.30 Lab 7 Assignment - Tear out this page Each Assignment is worth 1% of...
BIOL 10.30 Lab 7 Assignment - Tear out this page Each Assignment is worth 1% of your final grade. BIOL 1030 Lab Assignments MUST be submitted to your TA before you leave the Question 1 -(10 marks) Label the two diagrams below exine (O) intine () generative cell (g.c.)[1N) () g.c. plasma membrane g.c. nucleolus () g.c. nucleus () tube nucleus [IN] ) Mitosis Two sperm cells FAAL led pollen grain (microgametophyte) Figure 3c. Lilium anther c.s. showing two celled...
produce haploid gametes; then those gametes can fuse to form a diploid zygote. 35. What is...
produce haploid gametes; then those gametes can fuse to form a diploid zygote. 35. What is another purpose of meiosis other than stated in the question above? 36. How many cell divisions are involved in meiosis? (two) Do the cells also go through 37. What are homologous chromosomes? Do they contain the same alleles (different 38. How do homologous chromosomes line up on the metaphase plate in meiosis 1? How do 39. Understand the basic steps of meiosis. Please use...
A microspore that is isolated out of a pollen sac, and given nutrients in a test...
A microspore that is isolated out of a pollen sac, and given nutrients in a test tube, will develop into a pollen grain with a cell wall being the same as the cell wall of a pollen grain that develops inside of a pollen sac. Do you agree with this statement? Explain your answer
Plant Diversity The scales of the female cones bear ovules, which enclose the female sporangia. Cells...
Plant Diversity The scales of the female cones bear ovules, which enclose the female sporangia. Cells in the female sporangia also undergo meiosis to produce spores. One of the spores from each meiotic division develops into a female gametophyte by mitosis. As the pollen germinates and produces sperm nuclei by mitosis, the female gametophyte produces an egg. One sperm nucleus reaches the egg through the pollen tube and fertilizes it. Notice in Figure 6 that the male gametangium has been...
1)if meiosis fails to occur in both male and female worms what would the zygote nucleus resemble
1)if meiosis fails to occur in both male and female worms what would the zygote nucleus resemble.2)what would a nucleus of a mature gamete from a female worm resemble.3)New cells produced within the uterus is a direct result of what.4)what substances are involved in controlling the production of sperm and eggs in humans.5)which practice is essential to parenta care.
Question 21 Which of the following is TRUE concerning fertilization in angiosperms? O The pollen tube is formed by the egg moving up the stigma toward sperm O One sperm fuses with the polar nuclei to form the endosperm, which is triploid O Pollen germination occurs on the anther O A generative cellgan divide by meiosis to form four egg cells
Mature flower on sporophyte plant Generative cell Tube cell Ovule w Pollen grains Megasporangium Megaspore Antipodal cells Central cell Synergids Egg Nucleus of - developing endosperm Zygote Egg nucleus Discharged sperm nuclei Identify the indicated structures in the pine life cycle. Indicate what parts of the cycle are haploid or diploid. Label the two processes taking place in the yellow boxes, and show
BIOL 10.30 Lab 7 Assignment - Tear out this page Each Assignment is worth 1% of your final grade. BIOL 1030 Lab Assignments MUST be submitted to your TA before you leave the Question 1 -(10 marks) Label the two diagrams below exine (O) intine () generative cell (g.c.)[1N) () g.c. plasma membrane g.c. nucleolus () g.c. nucleus () tube nucleus [IN] ) Mitosis Two sperm cells FAAL led pollen grain (microgametophyte) Figure 3c. Lilium anther c.s. showing two celled...
produce haploid gametes; then those gametes can fuse to form a diploid zygote. 35. What is another purpose of meiosis other than stated in the question above? 36. How many cell divisions are involved in meiosis? (two) Do the cells also go through 37. What are homologous chromosomes? Do they contain the same alleles (different 38. How do homologous chromosomes line up on the metaphase plate in meiosis 1? How do 39. Understand the basic steps of meiosis. Please use...
Plant Diversity The scales of the female cones bear ovules, which enclose the female sporangia. Cells in the female sporangia also undergo meiosis to produce spores. One of the spores from each meiotic division develops into a female gametophyte by mitosis. As the pollen germinates and produces sperm nuclei by mitosis, the female gametophyte produces an egg. One sperm nucleus reaches the egg through the pollen tube and fertilizes it. Notice in Figure 6 that the male gametangium has been...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago