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postnew [5]
3 years ago
14

If you are testing traits for Mendelian inheritance, how do you calculate the EXPECTED values?

Biology
1 answer:
Georgia [21]3 years ago
8 0

n a cross between two heterozygous individuals, the offspring would be expected to show a 3 : 1 ratio. For example, in Case 1, three-fourths of the individuals would have red (wild-type) eyes, and one-fourth would have sepia eyes.

If there are 44 offspring, how many are expected to have red eyes?

We expect three-fourths to have red eyes.
<span>34</span> of 44 = 33

If there are 44 offspring, how many are expected to have sepia eyes?
<span>14</span> of 44 = 11

Now you are ready to calculate chi-square.

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During which type of cell division does each daughter cell contain half the amount of dna as did the cell just prior to cell div
Alinara [238K]
<span>meiosis 
This does a good job of explaining it.
https://www.khanacademy.org/test-prep/mcat/cells/cellular-division/a/mitosis-and-meiosis
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8 0
3 years ago
The term _______________ describes fly species which exploit foods and habitats created by agriculture and other human activitie
Crazy boy [7]
Synathropic  is  the  term  which  is  used  to   describe  fly  species  which  exploit  foods and habitat  created  by  agriculture  and other  human  activities. They   are  considered as pest   and  also as  vectors  to  diseases which   live  near  human and  benefit from   human and their  dwelling.
3 0
3 years ago
Read 2 more answers
A cousin who has been traveling overseas sneaks a plant through customs (who help along with the USDA, help to prevent invasive
Reil [10]

Answer and Explanation:

Invasive species are not native to an ecosystem/environment to which they've been introduced, which can cause disastrous disruptions to various food chains/webs and other native species' populations.

In this case, your cousin is bringing in a plant from overseas, so it clearly will be an invasive plant. You can tell them the following:

- this plant may take over the feeding source of native plants, causing those populations to decrease drastically or possibly even be wiped out

- secondary consumers that had once relied on those native plants for food energy will now have limited resources, competition will increase, and these consumers may begin to die off

- tertiary consumers that consumed these secondary consumers will begin to die off, as well

- this chain reaction will ripple through the entire food chain and food web, and totally disrupt the existing ecosystem

Thus, your cousin shouldn't plant this organism in their backyard and should instead destroy it.

6 0
3 years ago
What is the role of energy in living Organisms? Is it a more or less important role than other characteristics of life? Defend y
sdas [7]
Energy is vital for living organisms is our fuel . if there is no energy formed we can t talk about life because things cells that are too little to experience things have this purpose to form energy in order for us to function.we need to see the human body in a constant dynamic because every second is breaking and forming Atp( the primary source of energy) and using that atp for everything moving thinking keeping us healthy ex transporting macromolecular substances like glucose that is lately broke down (glicolisis) and forms other molecules of AtP .And the cycle goes on.In my opinion is decisive because if there is no energy there is no life the other things could work if the the everyday light goes away the moon can still be there we can still be there but at some point we will dissapear.Energy is requiered for everything to occur it repairs builds and maintains body tissues without it the has no chance to survive .Because there will be no metabolic processes and no cycle of energy exchanges.
6 0
3 years ago
You water three sunflower plants with salt water. Each plant receives a different concentration of salt solutions. A fourth plan
Kruka [31]

Answer:

The fourth plant that receives pure water is the control group.

Explanation:

The election of a control group is essential in an experiment. Its principal purpose is to allow the discrimination of the results obtained by the treatment in the study, in this case, <em>the different concentrations of salty water that each plant receives</em>. The control group provides a reference point. It must be selected from the same population of the treatment groups. Both groups must be similar in every variable that might influence the results, <u>except for the study treatment.</u>

5 0
3 years ago
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