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Vanyuwa [196]
3 years ago
14

What is meant by "true nucleus".

Biology
1 answer:
kotykmax [81]3 years ago
7 0

it simply means the cell's DNA is surrounded by a membrane. therefore the nucleus houses the cell's DNA and directs the synthesis of the proteins and ribosomes the cellular responsible for protein synthesis.

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What is the purpose of the part of the male reproductive system that is highlighted below​
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that is where sperm cells grow so that is the purpose of that

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Drag each tile to the correct location.
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Mitosis and meiosis are similar at the level of writing, and possess a very close mechanism; however, they do not achieve the same result!

Mitosis corresponds to a single "asexual" cell division of somatic cells (almost all cells in the body), and clones two daughter cells from a mother cell, which will be identical, and inherit exactly the same heritage genetic, indeed these two daughter cells will each have an identical karyotype (same chromosomes) and an identical genotype (same alleles) to that of the mother cell.

Meiosis corresponds to two successive "sexual" cell divisions affecting only germ cells; starting from a diploid cell (chromosomes present in pairs), meiosis leads to the formation of four gametes (haploid sexual cells, spermatozoa or oocytes) (a single copy of the chromosomes). Then, during fertilization, two gametes (each from meiosis, in the male and female) come together to form a zygote, in which diploidy will be restored.

The right answers are:

create two identical cells ==> mitosis

create four non-identical cells ==> meiosis

create haploid cells ==> meiosis

creates diploid cells ==> mitosis

occurs in all cels other tha gametes ==> mitosis

occurs in all cells related to sexual reproduction ==> meiosis

Read more on Brainly.com - brainly.com/question/10606970#readmore

Explanation:

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3 years ago
7. List three things that can bring life to a barren island​
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Answer:

Plantlife, grow a garden. Animal life, raise some livestock. And a water source, most definitley.

Explanation:

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3 years ago
Which of these sentences characterizes the regulatory mechanisms of gene expressions in organisms?
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</span>A genotype is a set of genes in the human DNA responsible for different traits. It represents your complete identity that you will inherit from your parents and ancestors.
<span>On the other hand, a phenotype is how that trait expresses physically, a characteristic, a visible description of your physical features, including height, eye color, overall health, history of diseases, the ability to gain or lose weight fast, what type of food you like, what you enjoy and what you hate. </span>
5 0
3 years ago
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