Answer:
a) The expected phenotype of the F1 plants is 100% RrBb, red kernels.
b) The expected phenotypic classes in the F2 are: 9:3:3:1
9/16 R-B-, 3/16 rrB-, 3/16 R-bb, 1/16 rrbb
Proportions 9:6:1.
9/16 Red kernel (R-B-), 6/16 Brown kernel (rrB- + R-bb), 1/16 White kernel (rrbb)
Explanation:
<u>Available data:</u>
- brown kernel: R-bb or rrB-
1º Cross) RRBB x rrbb
F1) 100% RrBb (red kernels)
2ºCross) RrBb x RrBb
Gametes) RB RB
Rb Rb
rB rB
rb rb
Punnet Square) RB Rb rB rb
RB RRBB RRBb RrBB RrBb
Rb RRBb RRbb RrBB Rrbb
rB RrBB RrBb rrBB rrBb
rb RrBb Rrbb rrBb rrbb
F2) Phenotypic classes:
<em>9/16 R-B-</em>
<em> 3/16 rrB-</em>
<em> 3/16 R-bb</em>
<em> 1/16 rrbb</em>
Phenotypic proportions:
<em>9/16 Red kernel (R-B-)</em>
<em> 6/16 Brown kernel (rrB- + R-bb)</em>
<em> 1/16 White kernel (rrbb) </em>
Answer: i think C
Explanation: The levels, from smallest to largest, are: molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere.
<em>hope this helps pls mark me brainliest</em>
Answer:
Prepare solutions of different acid concentrations, measure 50 milliliters of each into different beakers, and place the same type of medication of the same mass into the beaker
Explanation:
The experiment to test the effect of stomach acid concentration on the solubility of a particular oral medication will have the following configuration;
The independent variable = The concentration of the acid to which the medication is added
The dependent variable = The solubility of the medication in the acid concentration
The constant = The medication which is added to the acid concentration
The controls = The fixed mass and type of the particular medication and fixed volume of the different concentrations of the acid samples.
X-rays
used to measure bone density.
<u>Explanation</u>:
The bones density test measured by the X-rays, it measures the content of calcium and other bone minerals that are packed into the segment of bone. Most commonly used parts of bone for testing are spine, hip, occasionally and the forearm. It is generally done to know the chances of osteoporosis. More the bone minerals, more will be density. More density means the higher bone strength. Before the test, a person should avoid having calcium supplement.
B) Both parents are heterozygous. It is clear that Black fur is a dominant trait, so a white mouse is the result of two submissive traits clicking together.
