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suter [353]
4 years ago
12

When fewer visual pigment molecules are available to absorb light (for example, when a person has a color weakness), which of th

e following nervous system responses occurs? A.Fewer signals of the weakly perceived color are sent to the brain. B.A normal number of signals of the weakly perceived color is sent to the brain, but each signal is less intense. C.The signals for the weakly perceived color are sent to the brain via other, more plentiful, pigments. D.Light molecules stimulate the cells to make additional pigment.
Biology
1 answer:
Natali [406]4 years ago
4 0

Answer:

A.Fewer signals of the weakly perceived color are sent to the brain.

Explanation: the brain is the seat of nervous coordination where nerve cells sends signals for processing. An individual with a weak color means a fewer signal for color production is sent to the brain this is due to low pigment it had hence fewer pigment molecule are available to absorb light. If the pigment is high the signal sent will also be high.

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Identify the strengths and weaknesses of Mendel’s Law of Independent Assortment.
Darya [45]

Answer:

Explanation:

Mendel propel two laws The law of inheritance and that of independent assortment of gene.

Independent assortment of gene explain that alleles of a gene assort independently and that different Allele can show different phenotypic effect and differences. This means that in a gene where we have 2 allele they can both show individual difference where one can have a dominant effect over the other and the other allele is recessive.

This law does not take care of linked gene where alleles don't separate after crossing over sister chromatids but are rather inherited together given rise to complex inheritance.

Pleiotrophy effect of a gene where a gene is having many effects.

8 0
3 years ago
A usable dilution of disinfectant is one that prevents growth of bacteria when compared with the positive control tube. reduces
dolphi86 [110]

When compared to the positive control, a disinfectant dilution is considered to be useful if it stops bacterial growth.

Choosing a disinfectant:

When selecting a disinfectant, keep the following things in mind:

  • The range of bacteria that need to be eliminated. Look into the specifications of the manufacturers.
  • The conditions of usage of disinfectant.

Application of disinfectants :

  • Activity: it is necessary for efficient disinfection since, once diluted, it degrades over time. Different disinfectants deteriorate at different rates. Obtain data from the manufacturers. Disinfectants that don't have a color indication, like Virkon, should be marked with an expiration date.
  • Touch time: it has to be verified that the manufacturer's data to make sure the organism stays in contact for the specified amount of time. Considering that solid materials like cells and tissue granules are difficult for disinfectants to penetrate, autoclaving would be a more effective way to inactivate.

Therefore the correct choice is an option (A).

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7 0
2 years ago
TGC TAC GGC AAG transcribed into RNA
chubhunter [2.5K]

Answer:

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7 0
3 years ago
Independent assortment of chromosomes is a result of _____.
Ann [662]

Answer:

the "second law of Mendel", or principle of independent distribution, states that during the formation of gametes, each pair of alleles segregates independently of the other pairs.

Explanation:

Mendel's second Law is also known as the Law of Segregation, also as the Law of Equitable Separation, and also as the Law of Disjunction of the Alleles. This Second Law of Mendel is fulfilled in the second filial generation, that is to say, from the parents to the first generation, the First Law of Mendel is fulfilled, and after the children of the first generation this Second Law of Mendel is fulfilled.

This 2nd Law of Mendel, speaks of the separation of the alleles in each of the crossing between the members of the first generation, who would now become parental of the second generation, for the formation of a new child gamete with certain characteristics.

Since each allele is separated to constitute features that do not belong to the first filial generation, but to that of the parents. That is to say that many of the most obvious features in the recessive allele would be present when a generation leaps. All this in relative proportion to the number of individuals in the second subsidiary generation.

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3 years ago
The depth of a lake is most likely to be measured in
labwork [276]
That depends on where you are in the world. Due to the fact that America is the ONLY nation in the world who uses the ft/in system, it would most likely be measured in meters. 
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