Feather color in budgies is determined by two different genes, Y and B, one for pigment on the outside and one for the inside of the feather. YYBB, YyBB, YYBb or YyBb is green; yyBB or yyBb is blue; YYbb or Yybb is yellow; and yybb is white. A blue budgie is crossed with a white budgie. Which of the following results is possible?a. green offspring
b. yellow offspring
c. blue offspring
d. A and B
e. A, B, and C

Answers

Answer 1
Answer:

In a dihybrid cross, a blue budgie is crossed with a white budgie creating only blue offspring because all the progeny will show genotype yyBb, option c is correct.

What is a dihybrid cross?

In a dihybrid cross, one character is dominant over the other and masks the other allele and in a dihybrid cross, it follows the law of independent assortments.

Blue offspring only, because If a bluebudgie is crossed with a white budgie,  yyBB or yyBb × yybb. let us yyBb for blue budgie, so we have; yB, yb, yB, yb representing the gametes.

On the other hand, in white budgie yybb, we will have yb, yb, yb, yb representing the other gamets in the cross. if a dihybrid cross occurs among these results, all progeny in marks will be yyBb, showing that they are all Blue offspring only.

Therefore all the progeny will be blue, hence option c is correct.

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Answer 2
Answer:

Answer:

Blue offspring only

Explanation:

If A blue budgie is crossed with a white budgie.

i.e yyBB or yyBb × yybb

let use yyBb for blue budgie,so we have; yB, yb, yB, yb representing the columns on the horizontal rows of the punnet square.

on the other hand, in white budgie yybb, we will have yb, yb, yb, yb representing the rows on the vertical column of the punnet square.

if a dihybrid cross occurs among these representative, all progeny in the punnet square will be yyBb, showing that they are all Blue offspring only.


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Question 5 of 10An engineering team has a goal of developing a bicycle frame that is both
lighter and stronger than previous models that they can sell at a higher price.
Which statement describes how a risk would be factored into a cost-benefit
analysis?
A. The cost of the materials to make the frames would be added to
potential improvements in consumer safety.
B. A reduction in employee safety would be added to the increase in
sales of the bicycle frames.
C. The ecological damage of mining the materials would be
subtracted from the profits made by selling the bicycle frames.
D. The money spent manufacturing the frames would be subtracted
from the profits made by selling the bicycle frames.

Answers

Cost-benefit analysis has been defined as the approach used to evaluate the advantages and disadvantages of the choices. The ecological damages must be subtracted from selling profits. Thus, option C is correct.

What is the cost-benefit analysis?

Cost-benefit analysis has been defined as the estimation of the cost and the profits in economical terms. It allows the determination of the monetary benefit gained by the manufacturing, production, and selling of the products.

To manufacture the bicycle frame the monetary benefit can be estimated by subtracting ecological damages for material mining from the profits earned by selling the frame of the bicycle. It gives the idea of how much it cost and benefits the maker.

Therefore, option C. (profits - ecological damage) gives a cost-benefit analysis.

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C. The egological damage of mining the materials would be subtracted from the profits made by selling the bicycle frames

Suppose a certain species of insect lives in the lush green canopy of the rain forest. Some of the insects are bright green in color, and some are bright yellow. Assume there is a natural predator of the insect in the area. What do you expect to happen to the populations of the green and the yellow insects over time?

Answers

You would expect the number of yellow insects in the area to decrease and the number of green insects to increase overtime in this situation. This is because the predator would be more likely to see (and try to eat) the yellow insects than the green insects in a habitat which is "lush and green". Due to this, less yellow insects would be present so there would be slightly more resources, space etc for the remaining green insects to live and breed (taking into account that lots of other animals live in a rainforest too, not just these different coloured members of a single species)

Answer:

yellow insects population will decline

Explanation:

In a lush green area , it is easy for green insects to hide themselves. Thus,  yellow colored insects can be easily traced by the predator species. This will cause decrease in population of yellow insects with time, while the green insect population will keep on growing. Removal of yellow insects also makes more food available for green insects . Hence without any environmental  restriction , the green insects population will flourish well.

during a 30 year period a severe drought occurred in three separate years according to this information what is the yearly frequency of drought?

Answers

During a 30 year period, the yearly frequency of drought is 10%, which is experienced in three separate years.
Additionally, drought is a period where precipitation is below average and thus resulting in prolonged shortages of water supply as far as both ground and surface water are concerned. This can last for several months or even for years.

Answer:

During a 30-year period, the yearly frequency of drought is 10%,

Explanation:

Fossil fuels currently account for the majority of the world’s energy use because they are ____. A. distributed evenly throughout the world B. nonpolluting C. relatively inexpensive and readily available D. renewable energy resources

Answers

You can answer the question by knowing that A) , B), and D are false. They are non-renewable (wind power is renewable), they are for example more present in Saudi Arabia than on other countries and they are very polluting, which is why we try to limit their use.

Therefore the correct answer is C.

The _____ nerve connects to the heart and adjusts its speed according to the body's demands.

Answers

The vagus nerve connects to the heart

Which of the following statements about Mendelian genetics is false? Select one: a. Alternate forms of genes are called alleles. b. A locus is a gene's location on its chromosome. c. Only two alleles can exist for a given gene. d. A genotype is a description of the alleles that represent an individual's genes. e. Individuals with the same phenotype can have different genotypes.

Answers

Mendel is one of the first scientists to demonstrate the inheritance of the alleles or genetic pattern of an organism. He is regarded as the Father of Genetics and also gave some laws to study the inheritance pattern.

The correct answer is:

Option C. Only two alleles can exist for a given gene

The statements in correspondence to genetics can be explained as:

1. The genes can exist in variousforms, such that genes can have two or more two alleles. Alleles are the variant form of the gene.

2. The gene position on the chromosome is known as a locus. The alleles of a gene will also be present at the same locus.

3. The genotype is defined as the genetic makeup of an organism, in which alleles are categorized as purebred or heterozygous.

4. The phenotypically similar organism can have different genotypes, such that a yellow flower can be coded by YY or Yy genotype.

Thus, the statement only two alleles exist for the gene is incorrect in terms of genetics.

To know more about Mendel, refer to the following link:

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Answer:

its b i had this like 2 minutes ago

Explanation: