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n200080 [17]
3 years ago
7

Membrane proteins serve many functions, one of which is transportation of substances across a membrane. If a cytologist placed c

ells into an environment where a chemical blocks the function of carrier proteins, which process will be affected?
Biology
1 answer:
morpeh [17]3 years ago
3 0

Answer:facilitated diffusion

Explanation: facilitated diffusion us the carrier-mediated Transport of large molecules across the cell membrane using Transport proteins found in the cell membrane.such molecules include glucose,amino acids and ions.the passage across the membrane is from higher concentration to lower concentration

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Let’s say A plant cell, normally diploid, completely screws up mitosis during metaphase and pulls full copies of all chromosomes
andrezito [222]

Answer:

4N

Explanation:

Mitosis is the process whereby a cell duplicates or produces another identical copy of itself. The mitotic process, which occurs in four main stages produces two daughter cells that are genetically identical to the parent cell. For example, a diploid organism (2n) will produce two daughter cells with 2n from mitosis.

However, in a case whereby a plant cell (A) screws up mitosis during metaphase and pulls full copies of all chromosomes to one side. This would result in one daughter cell having 4n or tetraploid number of chromosomes. Ideally, mitosis separates the chromosomes equally into the two daughter cells to have 2n each. If one cell has all chromosomes, it means that cell will have all the 4n.

For example, in a diploid human cell with 46 chromosomes (2n). Mitosis should occur in such a way that each daughter cell will have a diploid 46 number of chromosome (2n). However, if all the chromosome ends up in one cell during mitosis, that cell will have 92chromosomes, which is 4n or tetraploidy.

8 0
3 years ago
The separation of a group of individuals from the rest of the population is referred to as
Temka [501]
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Speciation refers to the genesis of a new species from an ancestral species. There are two basic ways this can happen. Anagenesis involves one species evolving into a different species. Cladogenesis occurs when one species splits into two or more species. Cladogenesis is of greater interest in terms of biodiversity and is the type of speciation discussed here. Speciation has two primary components: diversification and genetic isolation. The two principal types of cladogenesis are allopatric speciation and sympatric speciation.

Answer is Speciation!


3 0
4 years ago
1. Name 5 simple crochet stiches.
hjlf

Explanation:

Single Crochet Stitch.

Double Crochet Stitch.

Half Double Crochet Stitch.

Treble Crochet Stitch.

Slip Stitch Crochet.

3 0
2 years ago
Read 2 more answers
What is the answer to this please this is timed so please hurry up
solong [7]

Answer:

metaphase

Explanation:

8 0
3 years ago
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The function of a plant's vascular system is to
Arturiano [62]

Answer:

Deliver water, nutrients, amino acids, etc to the rest of the plant, and afir machanical supoort

7 0
3 years ago
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