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Dafna11 [192]
3 years ago
7

Which structure of a flowering plant produces female reproductive cells, of eggs?

Biology
1 answer:
abruzzese [7]3 years ago
8 0

I believe that the answer is ovule.

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Which of the following lists steps of mRNA production in eukaryotes in the correct order?A) 5' cap addition, addition of poly-A
Assoli18 [71]

Answer:

The correct answer is B) Transcription, 5' cap addition, addition of poly-A tail, exon splicing, passage through nuclear membrane.

Explanation:

The transcription process in eukaryotes takes place in the nucleus of the cell and after transcription post-transcriptional modification also takes place in the nucleus which is necessary to guide the mRNA out of the nucleus.

First, the process of transcription takes place in which DNA is transcribed to mRNA by an enzyme called RNA polymerase. After transcription post-transcriptional modifications takes place in the given order.

1. Capping: In capping process 7-methylguanosine is added by capping enzyme at 5' end of mRNA.

2. Polyadenylation: In polyadenylation, many poly-A residues are added at the 3' end of the mRNA called the poly-A tail.

3. Intron splicing: Introns are the non-coding sequence present in mRNA which are spliced out of mRNA and all exons are joined together.

After these post-transcriptional process, the mature mRNA is transported out of the nucleus through the nuclear membrane.

5 0
3 years ago
Why is fire an abiotic factor?
olga55 [171]

Fire is not a living thing, and abiotic factors are the factors in an ecosystem that are non-living. So, fire is an abiotic factor in an ecosystem, though its not mentioned alot.

7 0
2 years ago
Read 2 more answers
Biotic definition and example ?
Viktor [21]
Biotic factors of an ecosystem are all the living organisms that affect other organisms in an ecosystem and include animals, plants, microorganisms, dead organisms, and even animal waste. Example of biotic factors include: Grass as producers (autotrophs).
8 0
3 years ago
Materials that allow some of the light to pass through and the rest of the light to be scattered are called __________.
Nikitich [7]

Answer:

translucent

Explanation:

opaque surfaces allow no light to pass through, transparent surfaces allow all light to pass through and reflective surfaces reflect light.

5 0
3 years ago
The structure of a chloroplast consists of thylakoid sacs that are stacked together one over the other. How does the arrangement
Tcecarenko [31]

Answer:

vizioner conter nu poltvinh

Explanation:

grandes comer ler coltrantes

6 0
2 years ago
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