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Rudik [331]
2 years ago
11

What Controls all the cells activities.

Biology
2 answers:
irinina [24]2 years ago
8 0
The nucleus controls all of the cell’s activities.
anyanavicka [17]2 years ago
4 0

Answer: Nucleus

Explanation:  The nucleus found in the cell is similar to the brain of a person. Nucleus controls most of the cell’s growth and activity. It contains the genetic material of the cell, which is coded with the instructions needed for protein synthesis to produce chromosomes and other important molecules.

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Match the genetic mutations with their names.
dusya [7]

Answer:

1. CGAGGTT → CGTT (Deletion)

2. ATTCGG → ATTCGGATTCGG (Duplication)

3. CTTAAT → TAATTC (Inversion)

4. CTTAAT → CTTAACGCT (Insertion)

5. CGAT → CTAT (Substitution)

6. CCGGTT + TTAGGC = CCGTTA + GTTGGC (Translocation)

Explanation:

1. CGAGGTT → CGTT (Deletion) ---- This is called deletion because it involves the removal of 3 base pairs (AGG) from the DNA sequence.

2. ATTCGG → ATTCGGATTCGG (Duplication) ---- In this case, the particular sequence (ATTCGG) is copied again or duplicated.

3. CTTAAT → TAATTC (Inversion)----- This is called inversion mutation because the DNA sequence breaks off and is reattached but this time in a reverse order i.e. CTT becomes TTC, placing the last base first and the first base last.

4. CTTAAT → CTTAACGCT (Insertion) ------ This is called insertion mutation because it involves the addition of extra base pairs (CGC) into the sequence. The Insertion occurs between the last A and T nucleotide.

5. CGAT → CTAT (Substitution) ----- This is called substitution because Guanine base is replaced by Thymine in the DNA sequence. It is specifically called a transversion substitution because a purine (Guanine) is replaced by a pyrimidine (Thymine). It is called a point mutation because it involves a single base.

6. CCGGTT + TTAGGC = CCGTTA + GTTGGC (Translocation) ----- in this case, CCGGTT and TTAGGC are sequences on different chromosomes. Portions of sequence on the first chromosome (GTT) and second chromosome (TTA) breaks off and gets reattached/exchanged in each other i.e. the first chromosome gets TTA while the second gets GTT. This kind of mutation is called translocation.

4 0
3 years ago
True or False? The low power objective lens has a greater magnification than the high power objective lens.
Nana76 [90]

Answer: true

Explanation: i said so

5 0
3 years ago
How many chromosomes does a human body have?
Novay_Z [31]
<span>Humans have 23 Chromosomes </span>
8 0
3 years ago
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Which term refers to the tiny pieces that make up a mosaic?
STatiana [176]
Tessarae
is  the correct answer
8 0
3 years ago
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Which is the site of the light-dependent reactions of photosynthesis?
Darya [45]

Answer:

Thylakoids.

Explanation:

Thylakoids absorb light through light harvesting complexes.

6 0
3 years ago
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