In poultry, two genes, R and P, control the shape of the comb on the head. The following genotype/phenotype relationship applies to these two genes: R- P- animals have a 'walnut' comb; R- pp animals have a 'rose' comb; rr P- animals have a 'pea' comb; rr pp animals have a 'single' comb. What will the comb phenotypes of the progeny be for a cross of rr PP X rr Pp animals

Answers

Answer 1

Answer:

100% of the progeny will have a pea comb, rrP-

Explanation:

Available data:

two genes, R and P, control the shape of the comb on the headR- P- animals have a 'walnut' combR- pp animals have a 'rose' combrr P- animals have a 'pea' combrr pp animals have a 'single' comb

Cross:

Parentals)      rrPP          x        rrPp

Gametes) rP, rP, rP, rP        rP, rP, rp, rp

Punnett square)     rP     rP      rP      rP

                    rP    rrPP   rrPP   rrPP  rrPP

                    rP    rrPP   rrPP   rrPP  rrPP

                    rp    rrPp   rrPp   rrPp   rrPp

                    rp    rrPp   rrPp   rrPp   rrPp

F1) Genotype

8/16 = 1/2 = 50% of the progeny will be rrPP 8/16 = 1/2 = 50% of the progeny will be rrPp

    Phenotype

    16/16 = 100% of the progeny will have a pea comb


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Answer: School Psychologist

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Answer:

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What causes the "dead zone" in the Gulf of Mexico each summer?

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A dead zone of oxygen-depleted waters forms every summer in the Gulf of Mexico in response to nutrient runoff from the Mississippi River watershed. ... Nutrient-rich runoff containing nitrogen and phosphorus from agricultural lands and sewage causes the summer dead zone in the Gulf of Mexico.

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view pic below.

Answers

tarapoto because it is at 0 degrees

Answer:The location that is has warmer air temperature is Tarapoto Peru because the  lower it goes the more colder the temperature.

Explanation:Tarapoto in Peru has a warmer air temperature than Lima because the ocean currents is passing the coast of lima and the currents are coming from the pole and Tarapoto does not depend on the ocean currents and It is near the equator so Tarapoto has a warmer air temperature.

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2. Lines 25–33: What examples of sentence structure and wording help create the style of this essay? Are the sentences long and filled with details, or are they short and crisp? Is the grammar formal or informal? Give an example.

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Answer:

There are many important pieces that together make up a writer's style; like tone, word choice, grammar, language, descriptive technique, and so on. Style is also what determines the mood of a piece of literature, so its importance is huge across all genres.

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Does this help at all??

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Explanation:

What are two different characteristics of living things shown by a corn plant?

Answers

Answer and Explanation:

The corn plant shows 2 different characters of living by the color of the stock and the corn, and if the corn is big.

This may not be true for all things, so another 2 characteristics may be if the corn stock is growing tall, and that the corn stock does really good when given enough food (soil) and water.

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Answers

A because it’s passing and overlapping caused by the plates

Answer:

Divergent boundaries occur along spreading centers where plates are moving apart and new crust is created by magma pushing up from the mantle. Picture two giant conveyor belts, facing each other but slowly moving in opposite directions as they transport newly formed oceanic crust away from the ridge crest.

Why is pressure low at the equator relative to pressure at 30 degrees North
or South Latitude?

Answers

Answer:

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Which one of the following plates consists of both ocean and continenal crust?
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Answers

Answer:

b

Explanation:

A. South American i think

Unit 4 Cell Transport: What are three major molecules that enter the cell?

Answers

Answer:

Water, carbon dioxide, and oxygen can enter the cell.

Explanation:

They can enter the cell because they are small and can use osmosis to enter the cell.

Which of the following is most like an earthquake?
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Answer:

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M A T H

Our current paradigm on the position of continents in the World is that they have always been located where they are now.
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The question is true

!!PLEASE HELP!!
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Answers

Answer:

Plants have either no or very basic ability to sense. Animals have a much more highly developed sensory and nervous system.  Animals give off carbon dioxide which plants need to make food and take in oxygen which they need to breathe. Plants cells have cell walls and other structures differ from those of animals.

Explanation:

Hope this helps :)

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Answers

Answer:

1 Full color : 1 Himalayan

Explanation:

This question is depicting the multiple allele phenomenon in rabbits where four different alleles are responsible for coat color. The alleles are:

- C codes for full color

- cch codes for chinchilla; gray color

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- c codes for albino; all white

However, according to the question, the order of dominance of these alleles is: C > cch > ch > c. Hence, in a cross between Cch x chc, the following gametes will be produced by each parent:

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Using these gametes in a punnet square (see attached image), the following genotypic proportion of offsprings will be produced;

Cc = full color

Cch = full color

chc = Himalayan (white with black extremities)

chch = Himalayan (white with black extremities)

Hence, full color and Himalayan are the types of progeny that will be predicted from the cross.

What helps the stem of the Bramble to grip and move over the ground

Answers

Answer:

your answe is 1 million tasound

Explanation:

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Answer:

a biologist

Explanation:

biologist are ecosystem experts.

good luck

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You answer would be an ecolgist.

Good luck <3

What is the phylum and class of a squid

Answers

Answer: phylum Mollusca, class Cephalopoda

Explanation:

Frogs, lizards, and birds all have simular arrangment of bones n thier limbs. BOth thier arms and legs have one bone at the top, two bones at the bottom, little bones and then fingers or toes. What does the similarity o the bone struture suggest about these animals?
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Answers

I believe it to be option C

The  similarity of the bone structure suggest about these animals should be that they evolved at the same time

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Since both arm and legs should have one bone at the top, so here we considered the option c should be right.

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4. Examine the codon chart and list all of the codons that code for the amino acid leucine. List them: Second Bar U code ; amino acid cade amung aca" code arning old code, amino acid LOU UCA FORCE STICI DCA UGG Glou. CGC gla Firal Base Third Base as AUC mrt WENT GOO VA​

Answers

Answer:

The codons that code for LEUCINE amino acid are:

1. UUA

2. UUG

3. CUU

4. CUC

5. CUA

6. CUG

Explanation:

A CODON is a group of three nucleotides in the mRNA molecule that specifies a particular amino acid. It represents a trio combination of nucleotides (A, G, C, U). There are about 64 possible codons formed from four nucleotides used in a combination of three's i.e 4³ = 64. All the codons collectively form the GENETIC CODE, which is used by all known living organisms.

However, since there are only 20 amino acids in nature and 64 possible codons, more than one codon encodes an amino acid. This means that the genetic code is DEGENERATE or REDUNDANT. Hence, in this case involving the amino acid: LEUCINE, the six (6) codons that specify it (depicted in the attached genetic code) are as follows:

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- UUG

- CUU

- CUC

- CUA

- CUG

A codon is a three nucleotidic sequence that carries genetic information to assembly an amino acid to the growing protein. The six codons that code for leucine are UUA, UUG, CUU, CUC, CUA, and CUG.

----------------------------------------

During translation, the ribosome reads mRNA in 5' to 3' direction. While doing so, tRNA recognizes the codons and adds the correct amino acid to the growing peptidic chain.

A codon is a three nucleotidic sequence that carries genetic information to assembly an amino acid. One codon determines which amino acid is going to be addede to the protein.

In nature, thete are 20 amino acids that compose the proteins, and more than 20 possible codons combinations. So one amino acid is coded by more than one codon.

The amino acid LEUCINE is coded by six codons. They are,

UUAUUGCUUCUCCUACUG

-----------------------------

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Answers

Answer:
C
Explanation:
It’s easy

The climate would get colder and drier as we go up the mountain. So, the correct option is A.

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Answers

The answer ➪ Prior to pupae formation, the large maggots move away from the body, sometimes into the soil.

Insta: 25k_kem

Answer:

prior to pupae formation

Explanation:

bro shout out his insta on a school cheat site.

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Answers

Answer:

The cellular division in meiosis I is called the reduction division because it results in the reduction of the chromosome number from diploid (cell has two copies of each chromosome, one maternal and one paternal chromosome) to haploid (cell has only one copy of each chromosome, either maternally-derived or paternall.

Explanation:

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Answer:

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Please help ASAP! Please and thank you! Answer as much as you want but I need these answers! Please and thank you have a great and blessed day!

Answers

Explanation:

I Guess the first questions Answer is D and The second one is C..Not sure tho

Answer:

1) A

2) D

3) A

Hope this helps!

Tonicity in cells refers to the concentration of solute in a solution outside the cell relative to______.

Answers

Tonicity in cells depends on both the concentration of solute outside the cell and the concentration of solute inside the cell

Tonicity is a concept used in biology that defines the osmotic pressure ( pressure that stops the fluids from entering or leaving cells). This pressure is defined by the concentration of solute (substances dissolved in the liquid) outside and inside the cell.

In this context, the cell is classified as isotonic if there is a balance between the concentration outside and inside; hypertonic if the concentration outside the cell is higher, which causes the cell to shrink of hipotonic if the concentration outside is lower, which causes the cell to swell.

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based upon their phenotypes, the fartherd genotype is most like , the mother genotype is most likely

Answers

Answer:

the father is  aa or Aa

the mother is not determined

Explanation:

A conservation ecologist is studying Pacific Green Sea Turtles. One population is based on a remote island in the Indo-pacific that has very little tourist or human activity. The other population is on the coast of Australia and deals with more consequences of human activity. The ecologist has taken counts of the number of eggs in each female’s nest at both locations to evaluate the reproductive success. Is there a statistically significant difference between the two populations? What conclusion can you draw from this information? (5 points, 2 for answer, and 3 for showing work)

Answers

Answer:

Yes.

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Yes, there is a statistically significant difference between the two populations of green sea turtle because the turtle lay eggs on the beaches of the ocean so human presence at the beach damaged eggs and lead to the decrease in population of green sea turtle while on the other hand, there is high population of green sea turtle due to no human presence or activities in the remote Island.

In the lungs, what can affect the suface area

Answers

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can you pls tell me I am on a test

Answers

Answer:

I believe it is C

Explanation:

because thr oots absorn water from the soil

Answer:

the answer is C

Explanation:

roots absorb water from soil hope this helps

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