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kicyunya [14]
3 years ago
9

Mutations such as polyploidy and crossing over provide the genetic basis for

Biology
1 answer:
EleoNora [17]3 years ago
4 0

Answer;

Evolution

Mutations such as polyploidy and crossing over provide the genetic basis for evolution.

Explanation;

Evolution is the change in the characteristics or traits of a species over several generations and relies on the process of natural selection.

It occurs when some individuals or some alleles (alternative form of gene) reproduce themselves more than others,increasing their prevalence in subsequent generation.

Polypoidy and crossover brings about mutations that cause changes in characteristics and traits over time resulting to evolution.

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Why is the genetic code considered universal?
sdas [7]
The genetic code is considered universal because the same four nucleotide bases are used by all known organisms
7 0
2 years ago
Draw three different food chains, from this food web, that contain an aphid.
serg [7]

The food chain that would include an aphid include:

  • Plant ---> Aphid ----> Birds
  • Plant ---> Aphid ----> Spiders
  • Plant ---> Aphid ----> Bat

<h3>What is a food chain?</h3>

A food chain is a chart that shows how food is transferred from producers to consumers.

Producers are plants as they are responsible for producing food from inorganic materials using the Sun's energy.

Consumers depend on plants and other organisms.

The food chain that would include an aphid include:

  • Plant ---> Aphid ----> Birds
  • Plant ---> Aphid ----> Spiders
  • Plant ---> Aphid ----> Bat

Learn more about food chain at: brainly.com/question/19066362

5 0
2 years ago
What is the wavelength of a wave with a frequency of 0.4 kHz traveling at 16 m/s?
larisa86 [58]

Answer: 0.04metres

Explanation:

The wavelength of a wave is the distance covered by the wave after one complete cycle. It is measured in metres, and represented by the symbol λ

Recall that Velocity (V) = Frequency F x wavelength λ

V = F λ

Make λ the subject formula

λ = V / F

In this case Frequency = 0.4 kHz

Convert kilohertz to hertz by multiplying 0.4 by 1000 i.e (0.4 x 1000Hz) = 400Hz

Velocity of wave = 16 m/s

So, λ = V / F

λ = 16 m/s / 400Hz

λ = 0.04metres

Thus, the wavelength of a wave is 0.04metres

3 0
3 years ago
Read 2 more answers
An imaginary species of bears, fur color can be purple or gold. Gold is the dominant trait. How would the bear look if the gene
BARSIC [14]

Answer:

<h2>Gold</h2>

Explanation:

Assume Gold trait =P ,

Purple= p,

Given:

Gold (P) is dominant over purple(p), so P is dominant over p.

If the bear is homozygous pp ( recessive)  then bear will look purple,

If the bear is heterozygous Pp, then bear will look gold,

If the bear is homozygous DD( dominant), then the bear will look GOLD,

6 0
3 years ago
Jonathan sows some pea seeds in one pot. Within few days the seeds germinate and a radicle forms, which gives rise to roots. How
Sedbober [7]
<span>C.) A pea is a dicot, so the radicle grows and gives rise to a main root and its branches</span>
6 0
3 years ago
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