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RUDIKE [14]
2 years ago
8

Which definition best explains the term gene expression?

Biology
1 answer:
gizmo_the_mogwai [7]2 years ago
7 0

Answer:

Answer:

Gene expression is the process by which the information encoded in a gene is used to direct the assembly of a protein molecule. ... Each group of three bases (codon) corresponds to one of 20 different amino acids used to build the protein.

OR

Gene expression is. the activation of a gene leading to the transcription, translation and synthesis of a specific protein.

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Tay-Sachs, which is a recessive lethal disease, results only when individuals possess two copies of the disease-causing allele.
VashaNatasha [74]

Answer:

a. Heterozygous individuals may pass on their copy of the disease-causing allele to offspring.

Explanation:

Tay-Sachs, which is a recessive lethal disease  ---- Let say the recessive lethal diseases is s

∴ it only results when an individual posses two copies of the diseases-causing allele i.e two copies of the disease will be ss.

Now, when two hetrozygous individuals crossed , it is obvious that each can pass on their copy of the disease-causing allele to the offspring.

Let show an illustration for the above statement.

Let the heterozygous individual be Ts, if Ts cross with another Ts;

we will have:

Ts × Ts

         T          s

T        TT        Ts

s        Ts          ss

the offspring are TT,Ts,Ts,ss

We can now see how the Heterozygous individuals pass on their copy of the disease-causing allele to the offspring (Ts).

8 0
3 years ago
Match each description to the correct step. Metaphase 11 Nuclear membranes form around each set of chromosomes. Prophase 11 Chro
zvonat [6]

Answer:

Metaphase ⇒ Chromosomes line up in the middle of the cell

Prophase ⇒ DNA condenses to form chromosomes

Anaphase ⇒ Each chromosome separates and moves to opposite ends of the cell

Telophase ⇒ Nuclear membranes form around each set of chromosomes

3 0
3 years ago
_______ is a macromolecule that holds cell information in a coded form. Made of sugar
Amiraneli [1.4K]

Answer:

Nucleic Acids

Explanation:

Nucleic acids are made out of nucleotides and they come in two forms: Deoxyribonucleic Acid (DNA) and Ribonucleic Acid (RNA). DNA holds the code of life, in other words, it holds the code for making proteins that are essential in building cells, tissues, and organs. DNA is found in the nucleus of a cell.

4 0
3 years ago
14. What would be an example of an evolutionary bottleneck?
den301095 [7]
Bottleneck is an example of a genetic drift that happens when the size of a population is severely reduced.
6 0
3 years ago
Organisms such as decay bacteria that help recycle dead organic matter are called
Anastasy [175]
Decomposer. Hope it helps!
4 0
3 years ago
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