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krok68 [10]
3 years ago
12

Need help pleaseeeee!!!

Biology
1 answer:
Olegator [25]3 years ago
8 0

Answer:

Safety hazards arise because workers may carelessly handle tools with blunt ends or sharp edges.

Explanation:

Safety hazards encompass any type of substance, condition or object that can injure workers.

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mr_godi [17]
Well lions already have a large variety of prey that it feeds on , however they do not eat the entire animal, they are going to have to adapt so that the can eat other things rather that just the main meat of their prey, They may need to expand where they live and be a little more resourceful
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4 years ago
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Plz help its for a big grade <br>needs at least (10 sentences)!!!!!​
ICE Princess25 [194]

Answer:

Atom, smallest unit into which matter can be divided without the release of electrically charged particles. It also is the smallest unit of matter that has the characteristic properties of a chemical element. As such, the atom is the basic building block of chemistry.

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4 0
3 years ago
Describe each step required to make a gene knock-out in mice.
Ahat [919]

Answer:

1. Designing of the target vector.

2. Insertion of the target vector into the embryonic stem cell

3. Selection of the cells

4. Injecting selected cells into the new cells

5. Breeding of mouse with a normal mouse

Explanation:

The target vectors are made by inserting markers into them. The target vector is inserted into ES cells. The vector generally recombined with the target gene and knock-out that gene. Sometimes, recombination of vectors occurs at incorrect place.

The cells survive in the presence of markers only if the target gene is incorporated with target vector. The cells with the target vector are injected into a normal developing embryo of mouse.

The developed mouse will consist of heterozygous knockout cells and its own cells. The normal mouse is bred with this chimeric mouse. The offspring of these mouse are able to transfer knock-out gene to next generation.

6 0
3 years ago
Tay-Sachs disease is a human genetic abnormality caused by insufficient activity of a hydrolytic enzyme called hexosaminidase A.
Feliz [49]

Answer:

<u>lysosomes</u>

Explanation:

They are spherical sac-like organelles that contain lytic enzymes that destroy aged and unwanted cells. They contain hydrolytic enzymes that destroy GM2, gangliosides a class of glycosphingolipid that are produced by the nerve cells. Mutations in the HEXA gene that leads to the translation of hexosaminidase A causes the genetic abnormality, Tay-Sachs.

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4 years ago
What is the importance of the cell cycle?
Mama L [17]
The cell cycle is the most important process in the growth of the organisms, so its control is very complicated, since even a small mistake can have a huge importance for the cell. ... Everytime any cell reaches the S phase, there is no more limitation for it and DNA replication and mitosis always take place.
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3 years ago
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