1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nadusha1986 [10]
3 years ago
14

You are a farmer starting an orchard and interested in breeding citrus trees. In grapefruits, big fruit (B) is dominant over sma

ll fruit (b), and silky skin (S) is dominant over rough skin (s). You cross a homozygous tree that has big fruit and silky skin, with a homozygous tree that has small fruit and rough skin. You self-cross the F1 to produce the F2.
Required:
a. What will be the phenotypic ratios in the F2?
b. If you backcross an F1 tree with the big, silky skin parent, what phenotypes and proportions would you expect in the offspring?
c. If you backcross an F1 tree with the small, rough skin parent, what phenotypes and proportions would you expect in the offspring?
Biology
1 answer:
krok68 [10]3 years ago
6 0
The answer is c i just did it
You might be interested in
How many codons code for the amino acid arginine?
UkoKoshka [18]
There are 6 codons that codes of the amino acid arginine

CGU
CGC
CGA
CGG
AGA
AGG
6 0
3 years ago
Read 2 more answers
Before 1914 many political leaders thought war in Europe could be
Snezhnost [94]
They felt that the war could be risky <span />
7 0
4 years ago
Which statement best compares the moon and Earth?
AlexFokin [52]

Answer:

the moon is small and the erath is big also the earth has water and the moon dose not

7 0
3 years ago
Bob, a nutritionist who works for the university medical center, has been asked to prepare special diets for two patients, susan
abruzzese [7]

Answer and Explanation:

Possibly, you forgot to attach the table with the contents of each food. Therefore, I calculated the task with similar values.

1. <em>Assume you have Food A, B, and C. Each has certain amount of Calcium, Iron, and Vit C. </em>

<em>             </em>Let's designate: Calcium <em>→ X oz , Iron → Y oz, vit C → Z oz</em>

2. <em>Assume you have following amount of</em><em> Calcium</em><em> in each food: </em>

  • Food A = 30 mg/oz
  • Food B = 25 mg/oz
  • Food C = 20 mg/oz

3. <em>Assume you have following amount of</em><em> Iron </em><em>in each food: </em>

  • Food A = 1 mg/oz
  • Food B = 1 mg/oz
  • Food C = 2 mg/oz

4. <em>Assume you have following amount of</em><em> vit C </em><em>in each food: </em>

  • Food A = 2 mg/oz
  • Food B = 5 mg/oz
  • Food C = 4 mg/oz

<u>Calculations:</u>

→ You have 3 different food and each has Calcium in it. You need exactly 320mg of Calcium per day. Therefore, each food would comprise certain proportion of daily Calcium intake. We can come up with equation: 30X+25Y+20Z = 390 mg

  • Similarly, for iron and vitamin C, the next equations could be used:

        X+Y+2Z=17 - Iron

        2X+5Y+4Z=42 - Vit C

→ Now you have a system of equations:

30X+25Y+20Z = 390 <em>(1) </em>

X+Y+2Z=17 <em>(2)</em>

2X+5Y+4Z=42 <em>(3)</em>

→ Look for similarities! <em>(1) and (3) </em>seem to be similar. We can multiply the <em>(3) </em>by -5 to obtain: -10X-25Y-20Z=-210. We add the <em>(1)</em> and modified <em>(3)</em> equations.

30X+25Y+20Z = 390

-10X-25Y-20Z=-210

__________________

20X+0+0=180

20X=180

<em><u>→ X=9 (oz of Calcium)</u></em>

<em><u></u></em>

→ Now, we can put<em> x=9 </em>into equations above to ease our job:

270+25Y+20Z=390 → 25Y+20Z=390-270=120

9+Y+Z=17 → Y+2Z=17-9=8

18+5Y+4Z=42 → 5Y+4Z=42-18=24

→ Similarly, we can use Eq-s <em>(2) and (3). </em>We can multiply the <em>(2) </em>by -5 to obtain: -5Y-10Z=-40. We add the <em>(3)</em> and modified <em>(2)</em> equations.

-5Y-10Z=-40

5Y+4Z=24

__________________

-6Z=-24

Z=4

<em><u>→ Z=4 (oz of vit C)</u></em>

<em><u></u></em>

→ Now, we can take X+Y+Z=17 <em>(2) </em>and just put in known values(<em>X=9 and Z=4</em>) to obtain Y:

9+Y+4=17

<u>→ Y=17-9-4=4 (oz of Iron)</u>

<u></u>

That's all! So, if you have table values, you can just re-write the equations and doing it stepwise, as it is shown here, you can manage to calculate every value you need :)

3 0
3 years ago
An energy pyramid has four trophic levels. The energy available at the apex level is 0.1 kilocalories. How much energy is availa
Harrizon [31]
1000 kilocalories... it decreases by 10% as you go up
7 0
4 years ago
Other questions:
  • Water that does not contain dissolved minerals is called soft water.
    6·2 answers
  • State pascals law.Also state Archimedis principle
    8·1 answer
  • A fly has two alleles for the color of its eyes. The green allele is recessive, and is represented by q. The blue allele is domi
    6·1 answer
  • What 3 parts of a plant cell work together to create needed materials like glucose
    12·1 answer
  • A ecosystem that exists on land (outside bodies of water) are called __________________________ and ecosystems that exist within
    8·1 answer
  • Where do restriction enzymes come from?
    6·2 answers
  • The enzyme lipase is produced in the pancreas to help digest fats in foods. The lipase breaks down the fats into which of the fo
    13·1 answer
  • N2+3h2--&gt;2NH3 <br><br> How many Nitrogen atoms are in none molecule of Ammonia ? Please help me
    6·1 answer
  • The____is critical in the cell cycle because it indicates the cell is ready for division​
    7·1 answer
  • Put the components of the visual projection pathway in order starting with the retina and ending with the brain. Instructions Ch
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!