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Neporo4naja [7]
2 years ago
8

35. Explain the cause and effect of nondisjunction.

Biology
2 answers:
Inga [223]2 years ago
5 0

Answer:

Explanation:

The other user is completely right.....  :))))

Muska~

Arisa [49]2 years ago
3 0

Explanation:

Nondisjunction: Failure of paired chromosomes to separate (to disjoin) during cell division, so that both chromosomes go to one daughter cell and none go to the other. Nondisjunction causes errors in chromosome number, such as trisomy 21 (Down syndrome) and monosomy X (Turner syndrome). It is also a common cause of early spontaneous abortions

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The chromosome must be duplicated before mitosis.

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This is important because mitosis is used in many cases in living things such as growth, repair, and more. This ensures us for example not suddenly changed to another organism or another characteristic.
3 0
3 years ago
Explain how the structure of compact bone relates to its function.
natka813 [3]

Answer:

Explanation:

Compact bone aka cortical bone is a dense, solid and rigid in which bony matrix with ground org. Substances and salts densely filled and leave tiny spaces known as lacunae. These spaces contain osteocytes also called as bone cells. Inside of these osteons there is a central canal which supplies blood vessels and nerves within bone. These vessels provide blood to the spongy bone and living cells housed within compact bones.

Structure of Compact bone: Basic unit of Compact bone is called osteon also known as haversian system. Each osteon consist of four parts.

1. Haversian canal which consists blood vessels and nerves acts as a site of hematopoiesis which is one of the functions of Compact bone.

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6 0
3 years ago
Which scientist demonstrated that the green parts of plants absorb carbon dioxide and release
BARSIC [14]
Jan Ingenhousz discovered photosynthesis

6 0
2 years ago
Wegener attempted to explain the movement of continents but could not identify a source of force strong enough. What did scienti
olga55 [171]
Hey there!

The answer is convection.

Hope this helped, have a great day :)
3 0
2 years ago
Read 2 more answers
DNA is comprised of four different types of . Each one is made up of a pentose , a group, and one of four . 2. Adenine, guanine,
kicyunya [14]

Answer:

1)  Nitrogenous bases

2) Nucleotides

3) Purines

4) Pyrimidines

Explanation:

1) Each one is made up of a pentose , a group, and one of four Nitrogenous bases

2) Adenine, guanine, cytosine and thymine are Nucleotides

3. Adenine and guanine, which have a nine-member double-ring, are called Purines

4. Cytosine and thymine, which have a six-member single-ring, are called Pyrimidines

7 0
3 years ago
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