BIOLOGY HIGH SCHOOL

A gene codes for a protein that is 500 amino acids long. Which of the following mutations is likely to be the most deleterious? a) a missense mutation at the 490th codon b) a nonsense mutation at the 490th codon c) a nonsense mutation at the fifth codon d)a missense mutation at the fifth codon

Answers

Answer 1
Answer:

The correct answer is:

c) A nonsense mutation at the fifth codon

Explanation:

A nonsense mutation at the fifth codon will lead to the appearance of a stop codon at this position, thereby the protein will lose its function
Answer 2
Answer:

The answer is C ) nonsense mutation at the fifth codon ! my major

Related Questions

1. The leaves of Mimosa plant closes up when touched this shows which characteristic of living thing?(a) grow (b) breath(c) respond (d) reproduce2. Which of the following is not an adaptive feature of polar bear?(a) It has thick layer of fur on its body(b) It has strong & sharp claws (c) It has a keen sense of smell(d) It has gills to respire under water3. Leaves are modified into spines in_____________.(a) Rose (c) Cactus(b) Bougainvillea (d) Succulents4. Which of these are biotic components of the environment?(a) Plants & Animals (c) Soil & Minerals(b) Air & Water (d) Sunlight & Temperature5. Which of the following is found in mountain regions?(a) Yak (c) both a & b(b) Snow leopard (d) None of these6. Dolphins breathe through_______________.(a) Gills (c) Moist skin(b) Blowholes (d) lungs7. Which habitat plants have hollow & light stems?(a) Desert (c) Aquatic(b) Grasslands (d) Mountain8. Which of the following is not an adaptation in frog?(a) Webbed feet (b) Strong back legs(b) Lungs (d) Gills9. Which of the following animal breathe through skin?(a) Earthworm (c) Grasshopper(b) Cockroach (d) Fish10. Animals that can live in water & land both?(a) Aquatic (c) Arboreal(b) Terrestrial (d) Amphibians11. Cone-shaped trees are found in_______________.(a) Mountains (c) Desert(b) Grasslands (d) both b & c​
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Eukaryotes evolved from prokaryote ancestors (the Endosymbiont Theory being a likely pathway). While eukaryotes share some traits with their prokaryote ancestor(s), some features are unique to eukaryotes. What are they?a. circular double-stranded DNA in the nucleus.b. ribosomes are used for protein synthesis.c. membrane-bound organelles.d. mitosis.e. mitochondria.f. photosynthesis.g. motility.i. histones associated with DNA.
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Which is an example of a competitive relationship? A.two male bighorn sheep smashing their horns over a mate

B.ticks feeding off the blood of a deer who is then harmed

C.Hawaiian bobtail squid glowing because of the bacteria living in its belly

D.cattle egrets feeding off the insects kicked up by the cape buffalo

Answers

Option A. two male bighorn sheep smashing their horns over a mate.

Name the processes that help water absorbed by the roots to reach the leaves

Answers

Answer:

Endomosis

Explanation:

hope it helped !! :))

Answer:

Water enters the plant through the root hairs and travels upwards in the stem vie the xylem, which is called capillarity.

Explanation:

The science of grouping and naming organisms is called what.

Answers

taxonomy is the science of naming organisms
Taxonomy is the science of grouping and naming organisms.

Bacteria come in assorted colors due to

Answers

Answer:

Different pigments.

Explanation:

Bacteria are the prokaryotic organisms that lacks the well developed nucleus. The endomembrane system is absent in bacteria and less cell organelle is present as compared with eukaryotic organism.

The bacteria are of different shape, size and colors. The colors of bacteria depend upon the type of pigment present in their body and the different wavelength of lights are absorbed by them. Pseudomonas contains the green color pigment pyoverdin and a blue pigment pyocyanin.

Thus, the answer is different pigments.
Bacteria come in assorted colors due to photosynthetic pigments.

1. Scientific theory
What is the definition of this answer ?

Answers

Answer:

scientific theory:  an explanation of an aspect of the natural world that can be repeatedly tested and proved to be a success every time.

A pizza 16 inches in diameter is cut into 8 congruent slices.What is the area of the sector of one piece of pizza?A. 25.12 in.²
B. 31.40 in.²
C. 50.24 in.²
D. 200.96 in.²

Answers

A = pi r^2 
A = 8^2 pi 
a = 64 pi = 201.06 sq in 
1/8 of this is 25.12 sq in

A. 25.12 in^2
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