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3 years ago

Common characteristics supporting the idea that the first land plants were related to green algae include __________.

Biology

1 answer:

Vlad1618 [11]3 years ago

7 0

Answer:

Presence of chlorophyll pigment in the leaves and cell walls were made of cellulose

Explanation:

The first plants that appeared on the land areas were comprised of the main component known as the cellulose that forms the cell wall of the plants and is responsible for making the various parts of plants such as branches, plant stems, and leaves, stronger and supportive.

In addition to this, the leaves of these primitive plants were comprised of green pigments known as chlorophyll that absorbs the sunlight and CO₂, and helps the plants in preparing the food for themselves as well as for the consumers, and also liberates oxygen (O₂) with it.

Thus, these are the two common characteristics that supported the idea that the primitive land plants had a relation with the green algae.

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loris [4]

Answer:

•The gene responsible for the albinism is sex-linked

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Explanation:

The gene responsible for the trait of albinism is said to be sex-linked because all those that were mentioned with the expression of albinism were females

The gene responsible for the trait of albinism is also said to be recessive because it was found to be rarely expressed and this goes in line with the definition of a recessive gene, which says; a recessive gene is the gene that remains unexpressed ( phenotypically) in the presence of it counterpart ( the dominant gene) in an allelic pair.

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MaRussiya [10]

Answer;

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Explanation;

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3 years ago

Can mRNA coding for a protein destined to be embedded in the plasma membrane associate with rough ER prior to the initiation of

Debora [2.8K]

Answer:

mRNA must start membrane protein in the cytoplasm and, after that, continue it in the rough ER.

Explanation:

Protein synthesis is initiated when mRNA meets a free ribosome, the primary structure for protein synthesis. Ribosomes can be found in the rough endoplasmic reticulum or floating in the cytosol. They read the mRNA code and add the correct amino acid using transference RNA to build the protein.

The rough endoplasmic reticulum is in charge of the synthesis and transport of the membrane proteins. It is also in charge of the latest protein modifications after transduction. Synthesis of membrane proteins starts in the cytoplasm with the production of a molecule portion known as a signal sequence. This portion leads the synthesizing protein and associated ribosome to a specific region in the Rough endoplasmic reticulum where it continues the protein building.

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belka [17]

I think it would be the first ones with lower o2 because fish dont breathe oxygene

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2 years ago

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