A sugarcane plant with yellow pollen and wavy leaves is crossed with a plant with yellow pollen and smooth leaves. Seed are collected and germinated. The following results are obtained in the progeny:
153 yellow pollen, wavy leaves
145 yellow pollen, smooth leaves
48 white pollen, wavy leaves
51 white pollen, smooth leaves

a. For each locus (trait): Assign appropriate symbols for the alleles of the genes, indicate the dominance interaction between the two alleles, and give all possible genotypes and their associated phenotypes
b. Give the genotypes of the parents of this cross.
c. Give the expected genotypic and phenotypic ratios of the progeny of this cross.

Answers

Answer 1

Answer:

a.

i) Y and y represent Yellow and white alleles for the pollen color gene; where Y (yellow) is dominant over y (white).

ii) W and w represent wavy and smooth alleles respectively for the leaf texture gene. W (wavy) is dominant over w (smooth).

YYWW, YyWW, YyWw, YYWw- yellow, wavy phenotype

YYww, Yyww- yellow, smooth phenotype

yyWW, yyWw- white, wavy phenotype

yyww- white, smooth phenotype

b) yellow pollen and wavy leaves (YyWw) × yellow pollen and smooth leaves (Yyww)

c) Expected genotypic and phenotypic ratio of progeny: 3:3:1:1

Explanation:

This question involves two distinct genes; one coding for pollen color and the other for leaf texture. Let Y and y represent Yellow and white alleles respectively for the pollen color gene; where Y (yellow) is dominant over y (white) while W and w represent wavy and smooth alleles respectively for the leaf texture gene; W allele (wavy) is dominant over w allele (smooth).

Next, we convert the progeny number to phenotypic ratio by dividing each number by the smallest number (48)

yellow pollen, wavy leaves= 153/48 =3.18

yellow pollen, smooth leaves= 145/48= 3.02

white pollen, wavy leaves= 48/48= 1

white pollen, smooth leaves= 51/48= 1.06

Approximately, the phenotypic ratio of the progeny is 3:3:1:1

According to the question, a parent with with yellow pollen and wavy leaves will have genotype YyWw because white pollen (w) and smooth leaf (s) was produced in the progeny. Also, the other parent with yellow pollen and smooth leaves will have genotype: Yyww. In a cross between these two parents i.e. YyWw × Yyww, the following gametes will be produced:

YyWw- YW, Yw, yW, yw

Yyww- Yw, Yw, yw, yw

Using these gametes in a punnet square (see attachment), the following 16 offsprings will be produced in a ratio 3:3:1:1

yellow pollen, wavy leaves (Y_W_) 6

yellow pollen, smooth leaves (Y_ww) 6

white pollen, wavy leaves (yyW_) 2

white pollen, smooth leaves (yyww) 2

A Sugarcane Plant With Yellow Pollen And Wavy Leaves Is Crossed With A Plant With Yellow Pollen And Smooth

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Answer:

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An example of quantitative data is mothers and their infants typically nap for two to three hours each afternoon. Therefore, option A is correct.

What is quantitative data ?

The data expressing a certain quantity and amount or range is called as quantitative data. The two main types of quantitative data are discrete data and continuous data.

The difference between the qualitative data and quantitative data is the quantitative data is numbers-based, countable, or measurable while qualitative data is interpretation-based, descriptive, and relating to language.

In her studies of chimpanzee behavior, Jane Goodall collected both qualitative and quantitative data. Therefore, An example of quantitative data is mothers and their infants typically nap for two to three hours each afternoon.

Thus, option A is correct.

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Your question is incomplete, probably your question was

In her studies of chimpanzee behavior, Jane Goodall collected both qualitative

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(From Topic: 1.3 In studying nature, scientists form and test hypotheses)

A. Mothers and their infants typically nap for two to three hours each afternoon.

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C. researchers have observed chimpanzees using more than half a dozen tools for assorted purposes.

D. Other animals, including some birds and dolphins, are now known to use tools.

deo: Are Bones Living Organs???

Answers

Answer:

yes

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A bone is a rigid organ that constitutes part of the vertebrate skeleton in animals. Bones protect the various organs of the body, produce red and white blood cells, store minerals, provide structure and support for the body, and enable mobility.

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Answer:

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How do the hypothesis of microspheres and the RNA World hypothesis build off of each other?

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Answer:

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On the basis of the RNA world hypothesis, the first genetic substance was considered to be an RNA, and then later the DNA turned out to be the genetic substance of higher species during the passage of evolution. It was also believed that microspheres comprised encoded information within it, and at the time of the splitting of microspheres, this encrypted information may have got transferred to the upcoming generation.  

Explanation:

Which of the following would be the MOST dangerous consequence if humans depleted the world’s timber supply?

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Answer:

No oxygen

Explanation:

we wouldn't be able to breath, cause without the trees there would be no oxygen

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Explanation:

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Answer:

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Answer:

no  

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l vidaal atiense

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C to provide passage of nutrients throughout the body

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This movement (peristalsis) is controlled by the autonomic enteric nervous system, which is one of the main divisions of the autonomic nervous system (ANS).

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Answer:

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Answer:

d

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DNA has become a boon in surveillance programs that is used to monitor the presence of invasive species in the aquatic system and can monitor the presence of nucleic acid water even if the animals are not there

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Mutations. Mutations are changes to a organisms DNA and are an important driver of diversity in population. Species evolve because of the accumulation of mutations that occur over time. The appearance of new mutations is the most common way to introduce novel genotypic and phenotypic variance.

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We make big decisions in life. Like cooking, fabric, eating, oils we use. Tooth paste, brush, shampoo and conditioner. People come up with experiments. Just normally everything we do in life is similar to what scientists do.

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the answer is true! hope this helped :)

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Explanation:

when we are in heat our body companciates with surrounding by profusely sweating

we can control our internal temperature by escape in time from heat and

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A statistic used in the fields of breeding and genetics that estimates the degree of variation in a phenotypic trait in a population that is due to genetic variation between individuals in that population.

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Answer:

A.

Explanation:

osmosis and diffusion are both passive transport bc it doesnt require energy and only moves down cocentration gradient, never against concertration gradient. Give me a brainliest if i helped! ♡

When certain molecules may move by osmosis or diffusion through the membrane without the cell using any energy, the process is called passive transport.

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Answers

Answer:

This is because humans are causing species to go extinct at a faster rate than the normal rate.

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It is documented that there are at least 2 million species on earth, and species have been naturally evolving and going extinct for billions of years. Some may say even if nothing is done there would still be extinction of this species which is true.

We care if human activity is driving other species extinct as we grow because humans are causing species to go extinct at a faster rate than the normal rate.

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A rock in a field

An earthworm taking in soil for nutrition

Answers

Answer:

earthworm taking soil for nutrition

Explanation:

it's consuming the energy unlike the rock

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An open system is characterized by its ability to exchange matter and energy with its external environment. In the case of an earthworm, it actively takes in soil for nutrition, breaking down organic matter and absorbing nutrients through its digestive system. This process allows the earthworm to grow, reproduce, and carry out essential life functions.

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The complete question is:

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A. A rock in a field

B. An earthworm taking in soil for nutrition

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Answer:

Both A and B

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True breed is a breed that is 100% identical with the parent, the traits inherited from that parents are 100% controlled by same allele of a gene hence they are exact copy.

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Answers

The first one. Plant cells have cell walls and animals don’t

Answer:

1) Plants cells have cell walls; animal cells don’t.

Explanation:

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Without cell walls, animal cells can take on different shapes!

It makes it able to move easier, flexible.

Hope it helped! Please mark brainliest! Thank you! :)

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Answers

Answer:

renewable

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Answers

Answer:

The correct answer would be B, manipulated by changes to the independent variable.

Explanation:

I hope this helps:)

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Answer:

A

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Answer:

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Answer:

vacuoles are larger in plant cell than in animal cell

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Explanation:

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