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sergejj [24]
3 years ago
10

Which is a homologous chromosome pair? chromatid zygote gamete tetrad

Biology
2 answers:
skelet666 [1.2K]3 years ago
8 0
I just took a test on this subject and the correct answer is D Tetrad.
bazaltina [42]3 years ago
6 0

The correct answer is option D, tetrad

Tetrad consist of two homologous chromosomes resulting into a foursome of DNA formed during meiosis. The 46 chromosomes in humans replicate during the process of meiosis. The original chromosomes and the replicated chromosome get attached to form conjoined twins, known as sister chromatids. During the prophase of meiosis, a four - part structure is formed which consists of two homologous chromosomes with two sister chromatids in each chromosomes.

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Place the following steps of endomembrane system function in the correct order.
maks197457 [2]

Answer:

D

Explanation:

<em>The correct option here would be</em><em> D</em><em>.</em>

The endomembrane system refers to a group of membrane-based organelles whose primary function is to synergistically work together to modify, package, and transport lipids and proteins. The system includes organelles such as the lysosome, the nuclear envelope, the endoplasmic reticulum, and the Golgi apparatus.

For an endomembrane system function involving a protein, the protein would first of all need to be synthesized by the ribosome - the free ones or the ones attached to the rough endoplasmic reticulum. Thereafter, the synthesized protein would then be folded or packaged into transportable vesicles. The vesicles are then received by the Golgi apparatus which further modifies the proteins before transporting them accordingly.

Hence, the correct order of a typical endomembrane system function would be:

  1. <em>Ribosomes on the RER synthesize proteins.</em>
  2. <em>Proteins are packaged into transport vesicles.</em>
  3. <em>Golgi apparatus receives transport vesicles from the RER.</em>
  4. <em>Proteins are modified by the Golgi apparatus.</em>
  5. <em>Modified proteins may be secreted from the cell by exocytosis.</em>
6 0
3 years ago
A(n) _____ in a molecule influences the way that a molecule reacts.
vitfil [10]

The correct answer is option B, that is, functional group.  

A functional group refers to a part of a molecule, which is a classified/recognizable group of bound atoms. The functional group provides the molecule with its characteristics, in spite of what molecule comprises it, they are the centers of chemical reactivity. The functional groups in a molecule require to be determined when naming.  


3 0
3 years ago
Read 2 more answers
What causes 37% of all pollution?<br> oil <br> water dumping <br> nuclear waste <br> landfills
OverLord2011 [107]

Answer:

nuclear waste

Explanation:

8 0
2 years ago
A student wrote a sentence describing a difference between sexual reproduction and asexual reproduction.
scoundrel [369]

Answer:

Asexual reproduction happens when organisms divide to reproduce, whereas sexual reproduction requires two organisms to mate to produce offspring.

4 0
3 years ago
After an earthquake, which type of seismic wave arrives second at a seismometer?
faust18 [17]

Answer: S waves

Explanation:

After an earthquake, secondary waves arrive second at a seismometer. Secondary waves, or S waves, are seismic waves that are known as body waves.

6 0
3 years ago
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