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zhannawk [14.2K]
3 years ago
6

Firstly, plant cells have a cell wall that surrounds the cell membrane, whereas animal cells do not. ... These additional organe

lles allow plants to form an upright structure without the need for a skeleton (cell wall and central vacuole), and also allow them to produce their own food through photosynthesis (chloroplasts).
Biology
1 answer:
VashaNatasha [74]3 years ago
7 0

Answer:

Explanation:

This question appears incomplete. However, one of the main differences (in organelles) between plants and animal cells is the absence of cell wall and chloroplast in animal cells while both organelles are present in plant cells. The cell wall is outside of the cell membrane. The cell wall provides rigidity and support to the plant cell while the chloroplast is the cellular "machinery" for photosynthesis. The chloroplast contains the green pigment called chlorophyll which provides green plants with there colour and assist the plants in absorbing/capturing of sunlight/energy for the purpose of photosynthesis (self production of food by green plants).

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Which of the following accurately describes a typical human karyotype? A. A karyotype displays all of an individual’s RNA. B. A
Contact [7]
The right answer is D. 1 pair of sex chromosomes and 22 pairs of autosomal chromosomes are pictured.

EXPLANATION:
A False, because A karyotype displays all of an individual’s DNA (deoxyribonucleic acid) and not RNA (ribonucleic acid)
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3 years ago
During the process of DNA replication, a complementary DNA strand is formed. If the original strand of DNA is 5' ATA GTG CCC AAC
Nostrana [21]

Answer:

This question lacks options, the options are as follows:

A. 3’ ATA GTG CCC AAC GGT 5’

B. 3’ TAT CAA GGG TTG CCA 5’

C. 3’ TAT CAC GGG TTG CCA 5’

D. 3’ TAT CAC GGG TTG CCT 5’

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Explanation:

DNA replication is the process by which a DNA molecule makes a copy of itself i.e. duplicated. In this process, the double-stranded DNA molecule splits into two single strands, which each serves as template for the synthesis of another strand. The new strand is synthesized using the COMPLEMENTARY BASE PAIRING RULE.

Complementary base pairing rule states that an Adenine base will always hydrogen bond with a Thymine base while Guanine base will always hydrogen bond with Cytosine base i.e. A-T, G-C. Hence, given the original strand of DNA in this question, the complementary strand will have the following sequence: 3’ TAT CAC GGG TTG CCA 5’

4 0
2 years ago
What could you compare the cell membrane to in real life ?
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The wall, window and door of a house, the security guard of a certain bank, or military sector of a country.

 hope it helped .
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