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Naddika [18.5K]
2 years ago
6

In some plants, phloem cells are connected end-to-end by sieve plates, creating a direct connection between the cytoplasm of phl

oem cells. What is one possible benefit of having phloem cells connected in this manner?
Biology
1 answer:
ella [17]2 years ago
6 0

Answer:

Explanation:

This is because the sieve plate interconnected like that help in exchange of substances or transport of substances between element cell and it act as a barrier to prevent the sap from been loss when phloem is damaged or cut. The sieve plates form the sieve tube which is the conducting element of the phloem. It is formed from series of elongated cells that are interconnected by perforations in their walls.

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Mendelian inheritance states that traits are determined when offspring receive for each trait from . Traits can be , which means
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Answers:

  • Mendelian inheritance states that traits are determined when offspring receive <u>alleles </u>for each trait from <u>Parents</u>.

Explanation:

As per Mendel, all the traits which are present in an offspring are determined by specific genes which exist in alternate forms called alleles. For example: The height of a plant is a trait which is determined by alleles T for tall height and t for small height of same gene. The organisms acquire these alleles from parents (one allele from each parent).

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  • Traits can be <u>Dominant </u>which means they can be seen and are capable of masking a different trait.

Explanation:

Dominant trait means when only a single dominant allele for the trait in an organism is enough for the organism to depict the trait. For example: In pea plant, purple flower color is a dominant trait over white. So any plant who contains only one dominant allele for purple (allele P) will have purple flowers but all plants that have two pp alleles will have recessive trait i.e White flowers.

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  • Traits can also be <u>Recessive </u>which means they can be masked.

As mentioned in above example, white flower color of pea plant is a recessive trait. Recessive means that if a plant has one copy of recessive and one copy of dominant allele, the dominant allele will suppress or mask the effect of dominant allele. Example is the above case of flower color when a plant with genotype Pp will have purple but not white flowers.

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  • Alleles are different versions of the same <u>gene </u>in an organism.

Alleles are just alternate forms of a gene. For example if a plant height is determined by a gene L, it has two forms capital L and small l which are alleles of same gene. But capital L is for tall height and small l is for short height.


Hope it help!

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Answer:

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Explanation:

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