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almond37 [142]
3 years ago
13

Which statement is true?

Biology
2 answers:
ozzi3 years ago
7 0
Your answer is going to be B. <span>Chromosomes contain many genes; not all genes are actively coding. :)</span>
Verdich [7]3 years ago
6 0

Answer:

Chromosomes contain many genes; not all genes are actively coding.

Explanation:

All cells in a given organism at a given time in their life contain the same code or genetic information as that first cell from which they originated, but not all genes are functioning in all cells at the same time and to the same degree. From this we can conclude that chromosomes contain many genes; Not all genes are actively coding.

In man, for example, there are genes that are actively coding only at a particular stage of life. Others in a particular organ. And still others only when a disease is underway.

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Excerpt from Building Green
Elan Coil [88]
A but the only reason why companies are actually caring about the earth is so that they sell more product and seem like they are doing good for the environment but economically they’re worse
3 0
3 years ago
Do stomata close when there is a lack of water in soil or a lack of carbon dioxide in the atmosphere?
Arte-miy333 [17]

<em>When water is abundant:</em>

-Temporal regulation of stomata is used:

Open during the day

Closed at night

- At night, there is no photosynthesis, so no demand for CO2 inside the leaf.

- Sunny day = demand for CO2 in leaf is high = stomata wide open.

- As there is plenty of water, plant trades water loss for photosynthesis products.

-  If the leaf's CO2 concentration is low, the stomata will stay open to continue fueling photosynthesis.

- High temperatures will also signal stomata to close.

- When limited water is available in the soil, plants try to prevent water loss.

5 0
4 years ago
Two short-haired guinea pigs are mated several times. Out of 100 offspring, 25 of them have long hair. What are the probable gen
Alekssandra [29.7K]

Answer:

Ss (male) × Ss (female)

Explanation:

This question involves a single gene coding for hair length in guinea pigs. Based on the information in this question, the allele for short hair (S) is dominant over the allele for long hair (s). This means that a guinea pig will only be phenotypically long-haired if the genotype is "ss".

According to this question, Two short-haired guinea pigs are mated several times. Out of the 100 offsprings produced by this cross, 25 of them have long hair (recessive). This means that the phenotypic ratio of this cross is 3 short hair : 1 long hair i.e. 100 - 25 = 75 short hair. 75/25 = 3/1 = 3:1

To produce this phenotypic ratio, the parents must both be heterozygous (Ss) for the hair length gene.

3 0
3 years ago
Which does not occur at the continental margin in the pacific ocean?
hammer [34]
Widened margins does not occur at the continental margin
3 0
4 years ago
Read 2 more answers
How do the 2 sides of the brain communicate?
8090 [49]

The two (2) sides of the brain are able to communicate through the corpus callosum.

<h3>What is a brain?</h3>

A brain can be defined as an organ of soft-nerve tissue that is found within the skull of vertebrates, and it's mainly responsible for the coordination of nervous activities, sensation and intellect in living organisms.

Based on medical information and records, the two (2) sides of the brain (symmetrical left and right hemispheres) are able to communicate through the corpus callosum.

Read more on brain here: brainly.com/question/1980581

#SPJ12

6 0
2 years ago
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