<span>F- allele for freckles
f- </span><span>allele without freckles
1) The man is heterozygote and has freckles, its indicating that the allele for freckles is dominant.
A cross between him and a woman who is also </span><span>heterozygote: Ff x Ff
it would result in the following probabilities:
- 1/4 - homozygote with freckles: FF
- 2/4 - </span><span>heterozygote with freckles: Ff
- 1/4- </span><span>homozygote without freckles:ff
Their son would have a probability of 75% of being born with freckles.
2) The cross resulted in this probabilities:
</span><span><span>- 1/4 - homozygote with freckles: FF
- 2/4 - </span><span>heterozygote with freckles: Ff
- 1/4- </span><span>homozygote without freckles:ff
So, the chance of being born heterozygote for this gene is 2/4, which is the same as half (50%).
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Is there a picture with this question? It seems like there's background information which isn't being shown here.
Pedigrees are basically a map of alleles for family trees
______Person1 -- Person2_____
I I I I
__Person3_ Person 4 Person5 _Person6___
I I I I I
Person7 Person8 Person9 Person10 Person11
And under everyone's name you write their alleles.
Punnett squares give the probability of someone having genes based on their parents' genes.
Parent1 (Aa) or Parent1 (aa)
Parent2 (AA) AA Aa Parent2 (Aa) Aa aa
AA Aa aa aa
Forests exchange large amounts of CO2 and other gases with the atmosphere and store carbon, in various forms, in trees and soils. ... Much of the CO2 in the air above a forest is taken in by trees through the process of photosynthesis,where it becomes one of the building blocks fortree growth or energy for life. (i hope this can help you ):)
<span>i think
D. As oceanic crust sank beneath other oceanic crust, the cooling rocks aligned with the earth's magnetic field, which periodically reversed. This periodic pattern was seen on one side of a mid-oceanic ridge</span>
<h2>Answer</h2><h3>C) The proteins involved in active transport must be powered by ATP to work.</h3><h2>Explanation:</h2>
If we talk about active transport mechanisms, it means that the proteins basically require the use of the energy, that energy is usually in the form of adenosine triphosphate (ATP). but if we talk about the facilitated diffusion, then the solute can move from the regions of lower concentration to the region of higher concentration. In this way, the proteins used for active transport different from those used for facilitated diffusion.
