Outline the production of the egg cell and other associated changes in the ovary of a plant

What will be an ideal response?


In the carpel, the ovary or ovaries form groupings of cells that become the ovule or ovules. Within the ovule, meiosis produces four large haploid cells per ovule. Three of these cells die, and the remaining cell undergoes mitosis, but the cytoplasm does not divide. This eventually produces eight haploid nuclei. These eight cells migrate, and ultimately the egg sac has a large central cell with two nuclei, and one haploid egg cell.

Biology & Microbiology

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An autosomally recessive metabolic disorder in the phenylalanine pathway that was first investigated by Garrod at the beginning of the twentieth century is ____________________

Fill in the blank(s) with correct word

Biology & Microbiology

If you placed a red blood cell in a hypotonic solution, you would predict that its volume would ____ while the solute concentration in its cytoplasm would ____.

A. increase, increase B. increase, decrease C. decrease, increase D. decrease, decrease E. decrease, not change

Biology & Microbiology

Inhalation

a. causes the diaphragm to contract and move downwards. b. is an active process. c. causes the rib cage to move upward. d. causes the thoracic cavity to expand. e. does all of these

Biology & Microbiology

Which of the following do NOT contain endoplasmic reticulum? 

A. noneukaryotes B. animal cells C. eukaryotic cells D. All of the choices are correct.

Biology & Microbiology