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Lostsunrise [7]
3 years ago
9

What are the differences between mitosis and meiosis in human cells? Pay particular attention to the types of cells, number of d

aughter cells, and chromosome numbers of the daughter cells.
Biology
1 answer:
Nezavi [6.7K]3 years ago
8 0
Mitosis Involves one cell division? Results in two daughter cells Results in diploid? daughter cells? (chromosome? number remains the same as parent cell) Daughter cells are genetically identical Occurs in all organisms except viruses Creates all body cells (somatic?) apart from the germ cells? (eggs and sperm) Prophase is much shorter No recombination/crossing over occurs in prophase. In metaphase individual chromosomes (pairs of chromatids) line up along the equator. During anaphase the sister chromatids are separated to opposite poles. Meiosis Involves two successive cell divisions Results in four daughter cells Results in haploid? daughter cells (chromosome number is halved from the parent cell) Daughter cells are genetically different Occurs only in animals, plants and fungi Creates germ cells (eggs and sperm) only Prophase I takes much longer Involves recombination/crossing over of chromosomes in prophase I In metaphase I pairs of chromosomes line up along the equator. During anaphase I the sister chromatids move together to the same pole. During anaphase II the sister chromatids are separated to opposite poles. Similarities Mitosis Diploid parent cell Consists of interphase, prophase, metaphase, anaphase and telophase In metaphase individual chromosomes (pairs of chromatids) line up along the equator. During anaphase the sister chromatids are separated to opposite poles. Ends with cytokinesis. Meiosis Diploid parent cell Consists of interphase, prophase, metaphase, anaphase and telophase (but twice!) In metaphase II individual chromosomes (pairs of chromatids) line up along the equator. During anaphase II the sister chromatids are separated to opposite poles. Ends with cytokinesis.
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larisa86 [58]

Answer:

The correct answer is option E.

Explanation:

The deep-colored, water-soluble proteins, which are mainly found in Rhodophyta and cyanobacteria are known as phycobiliproteins. They captivate the light energy and then pass it to the chlorophyll at the time of photosynthesis.  

They are comprised of proteins and are covalently attached through cysteine amino acid chromophores known as phycobilins. Thus, the correct answer is option E.  

3 0
3 years ago
Epinephrine, insulin, and auxins are all examples of that help produce feedback.
JulsSmile [24]

Answer: cofactors.

Explanation:

Epinephrine, insulin and auxins are cofactors.

Cofactors are non protein substance which activate enzymes activity by increasing the rate of chemical reaction of enzymes. They are organic molecules and they assist in enzyme activity. They exist in performing some reactions the enzymes cannot perform alone.

For example, insulin activate enzyme hexokinase which phosphorylate glucose.

8 0
3 years ago
Read 2 more answers
Question 4 (1 point) If 18 grams of oxygen reacts completely with 4 grams of hydrogen, we would expect how many grams of water?
Lisa [10]

Answer:

C.22 grams because mass cannot be created or destroyed

Explanation:

Reaction equation:

        2H₂  +   O₂    →   2 H₂O

Mass of oxygen  = 18g

Mass of hydrogen  = 4g

The mass of water produced is 22g according to law of conservation of mass.

The law states that " in a chemical reaction, mass is always conserved"

 The sum of the mass of product  and reactants must always be the same.  

6 0
3 years ago
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masha68 [24]
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ale4655 [162]

The answer is C or B.

If it was permeable water and other substances could get through.

And hard? That is one of those answer choices teachers throw in to try and make an obvious elimination choice.

I hope I have helped!

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