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ValentinkaMS [17]
3 years ago
8

A researcher studying a member of the Conus genus of cone snails discovers that there are many dozens of slightly different vari

ants of venom proteins coded by closely related genes. What is the most likely explanation for this great variation? [Hint: The compounds likely diversified in a similar way as the multiple globin proteins in mammals did.]a.Multiple gene duplication events have led to the production of a paralogous multigene family.b.Hybridization between two snail species has left the offspring with multiple orthologous genes.c.Duplicated genes underwent incomplete gene conversion, leading to many errors in sequence.d.Concerted evolution resulted in the production of many venom genes, scattered throughout the genome.e.The last common ancestor of all cone snails had a diverse set of venom genes that have been inherited by all cone snails
Biology
1 answer:
Korvikt [17]3 years ago
5 0

Answer:

a. Multiple gene duplication events have led to the production of a paralogous multigene family.

Explanation:

A globin gene family consists of several clusters of related genes formed by duplication of an ancestral gene. The different variants of venom proteins coded by closely related genes can reply this ancestral gene, forming this way a globin gene family in Cone snails.

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Which of the following are possible results of mutated genes?
Nimfa-mama [501]

Answer:

harmful effect and no effect

Explanation:

No effect: most mutated genes destroy themselves before it gets to far

Harmful effect: an example of harmful effects would be down-syndrome (where you have 3 21-chromosomes and you are only supposed to have 2)

6 0
3 years ago
Which statement describes the formation of a protein molecule?
Dovator [93]
First, we can eliminate 2 options. The simple unit of protein is amino acid, instead, the simple unit of fat and lipids are fatty acids and glycerol, therfore we can eliminate option A and D because fatty acids does not exist in protein.
Now we are left with B and C. To solve that, we need to understand that protein is made of a chain of amino acids, a lot of amino acids are chemically combined and cannot be broken down unless the use of enzymes. Amino acid are actually the monomers that forms protein.
Therefore, the answer is C. amino acid combine to form a protein chain.
3 0
3 years ago
Please help me out on this
tankabanditka [31]
It’s letter A
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6 0
3 years ago
Read 2 more answers
3. A population of 820 insects lives in a 1.2-acre area. They gather nectar from a
katen-ka-za [31]

Answer:

The plants have the higher population density. This is because, when compared with that of the insects, the number of plant species per acre area is higher; 2800 compared to 683.3

Explanation:

The number of individual species per unit area of land is known as the population density. Population density describes how crowded or spaced out a given species is in a particular area. The higher the population density, the more crowded the species are and vice versa. The formula for calculating population density is given as:

Population density = Number of species/land area

Population density of the insects = 820/1.2 = 683.3 insects/acre

Population density of the plants = 560/0.2 = 2800 plants/acre

Therefore, the plants have the higher population density.

This is because, when compared with that of the insects, the number of plant species per acre area is higher.

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3 years ago
What is the effect of defective or missing N-acetylglucosamine phosphotransferase on lysosomal protein sorting?
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The deficiency in this enzyme causes that it begins erroneously label other enzymes. Because the activating proteins are not properly labeled, they escape into spaces outside the cell and do not disintegrate substances inside the cells, that is, lysosomes cannot perform their function correctly. This causes waste products, which must include carbohydrates, lipids and proteins, accumulate in specific masses as inclusion bodies.

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