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2 years ago

A student wants to cross parent mice to produce offspring with black fur and offspring

Biology

1 answer:

topjm [15]2 years ago

5 0

Answer:

Bb and Bb

Explanation:

This is the only combination of the four that will produce both mice with black fur and mice with white fur. Option A will only give black fur, option B will only give white fur, and option C will only give black fur since parent 1 will only give the dominant B allele to the offspring. With Bb and Bb, the genotypes of the resulting offspring could be BB, Bb (which will result in black fur) or bb (which will result in white fur).

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A "mystery molecule" was isolated in a laboratory and scientists found that the molecule readily crossed artificial membranes. W

Arlecino [84]

Answer: D. calcium chloride

Calcium chloride molecules can be ruled out as the mystery molecule

Explanation:

Artificial membranes are also called as the synthetic membranes. It is created synthetically for the special separation purpose in the laboratory. 

It is used to separate large molecules like solid particles and big biological molecules like protein, DNA. 

They are produced from organic materials. Calcium chloride contains the chloride ion and calcium ion, as the chloride ion easily passes the artificial membrane so we can term calcium chloride as the mystery membrane that passes the artificial membrane easily.

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3 years ago

Outline two importance of planning meals

galina1969 [7]

Answer:

Keeps the body healthy and fit

nutrition is likely to be function better

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3 years ago

Which characteristic of life relies on the sun

trapecia [35]

Energy consumption
/ getting and consuming energy

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3 years ago

Read 2 more answers

compare the thickness of the wall of the superior and inferior vena cava and the aorta. which thicker and why????

Irina-Kira [14]

Answer:

The wall of the aorta is thicker than that of the inferior venacava; this is because the aorta is the artery that carries blood from the heart from the left ventricle to the whole body (except the lungs), while the superior and inferior venacava are the veins that carry blood from the body to the right atrium. hope this helps ! :)))

Explanation:

5 0

4 years ago

Sorry that the worksheet is sideways but could someone be so kind as to help answer these for me please?

almond37 [142]

Answer:

1 dominant allies are often represented with a capital letter

2 recessive allies however are represented with a lowercase latter

3 Heterozygous is The presence of two different alleles at a particular gene .

Explanation:

the first two questions where found in the passage

As for the third a heterozygous genotype may include one normal allele and one mutated allele or two different mutated alleles for example[ Hh, hh ]

4 0

3 years ago