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Anuta_ua [19.1K]
3 years ago
8

The fur color in a colony of mice has been brown for many generations. One gene appears to code for the fur color pigment. In a

recent litter of mouse pups, one mouse was born with white fur. Which of the following could have caused this change in fur color?
A. a mutation in the DNA sequence of the gene for brown fur
B. recombination between genes for fur color
C. All of these choices are correct
Biology
1 answer:
creativ13 [48]3 years ago
5 0

Answer:

A mutation in the DNA sequence of the gene for brown fur  

Explanation:

The mutations are capable of changing the encoded protein product, in this case the gene that encodes for the fur color pigment. This mutation may have occurred during mitosis or meiosis divisions.

If it is a spontaneous mutation that occurred in the germinal line (meiosis) and confers an adaptive advantage, it will increase their frequency in the population.

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A florist assembles a bouquet of flowers from the following: 1. lilies, which have long leaves with parallel veins 2. Queen Anne
fomenos

Answer:

C) three eudicots and one monocot.

Explanation:

Flowering plants are generally divided into two based on the number of seed leaves. These are:

  • Monocots: <em>these are flowering plants with only one seed leaf. Their leaves are usually long and narrow with parallel veination. Seed germination mode is hypogeal. Their stems are usually flesh and without branches and their roots are usually fibrous. Monocots' flowers are usually trimerous, that is, the flower parts are usually in threes.</em>
  • Eudicots: <em>as opposed to monocots, they are flowering plants with two seed leaves. The mode of seed germination is epigeal, leaves are usually broad with net veination pattern and they posses tap root system. Flower parts are usually in fours of fives and their stems are usually wide with branches.</em>

Let us look at which of the 2 groups the bunch of flowers collected by the florist belong:

Lilies have parallel vein - monocot

Wild carrot has large taproot - eudicot

Buttercups has five petals - eudicot

Daisies with two cotyledons - eudicot.

<em>Hence, the bunch of flowers contain three eudicots and one monocot.</em>

The correct option is C.

6 0
3 years ago
*What is the chemical equation for photosynthesis? What is the reverse of this chemical process called?
mestny [16]

Answer:

The process of photosynthesis is commonly written as: 6CO2 + 6H2O → C6H12O6 + 6O2. This means that the reactants, six carbon dioxide molecules and six water molecules, are converted by light energy captured by chlorophyll (implied by the arrow) into a sugar molecule and six oxygen molecules, the products.

There is one chemical process in biochemistry that has a reversible process. If you remember glycolysis, it actually has a reversible process. This reversible process is called gluconeogenesis. These two processes are reversible in response to glucose concentration in our bodies. When our bodies need energy, glucose breaks down into pyruvate through glycolysis. When our bodies need glucose for storage, pyruvate turns back into glucose through gluconeogenesis. Here are the processes:

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Answer:

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alexandr402 [8]

Answer:

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Explanation:

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olga_2 [115]
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