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MrRissso [65]
3 years ago
7

What do crops of the green revolution need in order to produce higher yields?

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

Answer:

These crops where improved  with technology, production of high-yielding variety, and improve farm practices. All these ensured  the crops of green revolution had increase yield.

Explanation:

Through  genetic engineering, high-yielding variety of cereals e.g wheat, maize, rice, were genetically engineered so that certain features which enhanced increased productivity were selected for.

Use of fertilization, the adoption of mechanization,good cropping and farming system are other factors which enhanced yield of these crops. Specifically, these crops were modified to enhance their Nitrogen uptake, which promotes rapid growths.

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Suppose a couple has come to see you to discuss the probability of their children having cystic fibrosis (CF). CF is known to be
m_a_m_a [10]

Answer:

The children that the couple may have a 25% chance of having cystic fibrosis and 75% chance of being carriers for the CF gene

Explanation:

We know that both parents are in the same situation. Let's start for example with the mother. She has one parent and one sibling with cystic fibrosis (CF). So, supposing that the allele of the gene that causes the disease is <em>"f"</em>,  as the disease is autosomal recessive, both, the parent and the sibling have the genotype ff.

Also, knowing that the other parent has a normal phenotype, but the sibling has CF, we deduce that the other parent of the mother must have a <em>Ff</em>.

So, <em>despite the mother's phenotype is normal, her genotype is Ff</em> (see the Punnett square 1) Couple's parents in the attached image). In other words, she is a carrier for the CF gene.

As the parents' situation is analogous, <em>we can deduce that the father also has a genotype Ff  </em>and is also a carrier for the CF gene.

Now, if we look at the Punnett square for them  (see the square 2) Couple in the attached image), we see that all their children will always have at least one copy of the CF allele, <em>f</em>.

More specifically, their children have 25%  chance of having cystic fibrosis and 75% chance of having a normal phenotype but being carriers of the CF gene.

6 0
3 years ago
Brown mice disappear from the mouse population for two generations and then reappear in the third generation. Give two possible
gizmo_the_mogwai [7]

Answer:

The trait is inherited in the homozygous recessive pattern

Possible mating is between two heterozygous individuals

Explanation:

One possible explanation for this is that the trait for this brown mice has to inherited in the homozygous recessive condition. It is possible for this trait to skip two generations and then reappear if it has to be inherited in the homozygous recessive condition.

Another explanation to complement the first is that for this trait to reappear, there was mating between two heterozygous individuals (with one allele being domiant and the other being recessive). It is possible that all matings within the two skipped generations was between an heterozygous and a homozygous dominant or between two homozygous dominant individuals which will not produce the brown mice..

5 0
3 years ago
In what way do adaptations help the survival of a species?
ozzi

Adaptations help the survival of a species as "It increases the biodiversity of the species".

<u>Answer:</u> Option C

<u>Explanation:</u>

The phenomenon that support the organisms to find similar and favourable environment to acquire food, build home, satisfy with weather, feel safe and attract mates to produce more offspring in order to improve evolutionary fitness is called as an "Adaptation".

The three main forms of adaptations are behavioural, structural, and physiological adaptations that are based on the way how genetic variation get communicated. Many species have all those types of combinations. For an instance, behavioural adaptations are bird's calling and migration.

3 0
3 years ago
What are all the countries that were affected by the black death?
Likurg_2 [28]
France Germany England and Italy hope this helps
5 0
2 years ago
The biggest potential pollutants that collision and paint shop deals with daily are paints and paint residue . True or FASLE
brilliants [131]

The answer is False.


7 0
2 years ago
Read 2 more answers
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