in a given hybridization between two flowers, red "R" is dominant, and white "r" is recessive. In a cross between two white-flowered plants, all of the offspring had white flowers. If a plant grower wanted to produce red flowers, what should s/he consider during breeding?

Answers

Answer 1

Answer:

Ans.

The dominant allele can be defined as the allele, which can express itself in both heterozygous and homozygous conditions. On the other hand, recessive allele can only express itself in homozygous condition (when both the alleles for recessive traits are present. It means presence of one dominant allele can hide the expression of recessive allele.

In given experimental flower, red color is dominant over white color of flower. So, 'if a plant grower wants to produce red flowers only, he should choose both the parent plants having red flowers as they have at least one allele for red color that would transfer to their offspring.'

Answer 2

Answer:

Lets understand this in a calculative way,

Let the parents genotype be RR and Rr

The offspring’s produced are – RR, Rr, Rr, RR, Thus all the offsprings are white as r is recessive, for producing a red flower the offspring must have “rr” genotype.

Now if parents have Rr and rr genotype , then the offspring would have Rr, rr, rr, Rr giving two white and two red flower. Of the second case may be where both the parent white flower are the carrier with genotype “Rr”

Thus in order to produce red flower the parents with following genotypes is necessary –

a) Both parents having Rr

b) One parents with rr and the other parent with Rr genotype

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Zaccharias Janssen was a scientist who studied properties of light and invented one of the first compound microscopes in the late 1500s. Which property did Janssen most likely believe about light during the time of his invention?

Answers

Answer:

Light bounces off surfaces

Explanation:

Answer:

Light bounces off surfaces property most likely believed by Janssen about light during the time of his invention

Explanation:

Zacharias Janssen is ascribed as a man to discover the compound microscope. Its purpose is to amplify diminutive things so characters can analyze them. There is a mirror attached under the microscope and when light bounces off the mirror it reaches through and nearby the specimen being viewed.

Some elements do not receive light. When a light wave is reflected off a facade, it proceeds back off at an angle similar that the wave beats the surface. Using these more innovative concepts about light enacted scientists to compose new inventions.

When a cold can of soda is insulated, the heat flow into the can on a hot day ____.a. increases
c. stays the same
b. decreases
d. both b and c

Answers

Answer:

Option C, stays the same

Explanation:

Heat flow by vibrating the molecules in any medium. Therefore, some medium is essential for heat transfer and hence no heat flows across an insulated vacuum can. Without any medium, heat transfer is stopped which means that neither the heat from outside environment can flow into the can nor it can flow from the can into the external environment.

Hence, the heat contained within the can shall remain the same.

Thus, option C is correct

The word insulate means to protect from heat, cold,...
So when a can is insulated, means that is protected from heat.
So the answer is:
C. stays the same :)))
I hope this is helpful
have a nice day

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Answers

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2.How does your DNA differ from a strawberries DNA? How is it similar

Answers

Answer:

1.DNA is more than 99% similar between any two people. All the differences in how we look, feel, behave and the differences in our health are due to less than 1% difference

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Explanation:

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Answers

the answer is bending a nail

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