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3 years ago

n a scientific experiment, the factor that may change in response to the manipulated variable is called the ______ variable.

2 answers:

8 0

I believe the answer is Responding or Dependent variable.
Let's say that a study is conducted in order to find out whether Drug A could work in slowing down the growth of Cancer Cells.
In this case, Drug A is considered as Independent variable and Growth of the Cancer Cells is considered as Dependent Variable.

faust18 [17]3 years ago

6 0

The answer is responding.

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Write a DNA sequence of 9 bases (recall that DNA sequences are combinations of A's, G's, C's, and T's). Transcribe the sequence

jonny [76]

So what you can to is like AGT GCA TCA then you can transcribe it to UCA CGU AGU. Finally all you need to do is put it in the codon chart Ser is the first Arg is your second and Ser is your last.

8 0

3 years ago

What are the two types of photoreceptors

Burka [1]

There are two types of photoreceptors in the human retina, rods and cones.

8 0

3 years ago

Read 2 more answers

narvez 5. Everyone in Dobby's family has a long nose and they brag that they are from a purebred line. Viola has a stubby nose.

mote1985 [20]

Assuming a single diallelic gene coding for the trait and expressing complete dominance, the phenotypes, genotypes, and probabilities of getting each of them vary according to the parentals' genotypes. See the options below.

---------------------------------

Since I do not have the genotypes from #2, I will provide different potential scenarios for this question.

I advise you to check on them and see which one matches the genotype from #2.

Let us assume a single diallelic gene is coding for the trait and expresses complete dominance.

<h3 /><h3>SCENARIO 1 ⇒ long nose is the dominant trait</h3>

Let us say that

L is the dominant allele and codes for long nose

l is the recessive allele and codes for stubby nose

Since long nose is dominant over stubby nose

LL and Ll ⇒ long nose

ll ⇒ stubby nose

If Dobby comes from a purebred family and has long nose, his genotype must be LL.

And if Viola has stubbi nose, her genotype must be ll.

Cross 1

Parentals) LL x ll

Gametes) L L l l

Punnett square) L L

l Ll Ll

F1) Genotype ⇒ 100% heter0zyg0us Ll

Phenotype ⇒ 100% long-nosed

There is 100% chances for a child to have a long nose

There is 0% chances for a child to have a stubby nose

These children are not purebred

**********

<h3>SCENARIO 2 ⇒ Stubby nose is the dominant trait</h3>

Let us say that

S is the dominant allele and codes for stubby nose

s is the recessive allele and codes for long nose

Since stubby nose is dominant over long nose

SS and Ss ⇒ stubby nose

ss ⇒ long nose

If Dobby comes from a purebred family and has long nose, his genotype must be ss.

And if Viola has stubbi nose, her genotype must be either SS or Ss.

There are two possible crosses.

Cross 1 : Violet is h0m0zyg0us dominant SS

Parentals) SS x ss

Gametes) S S s s

Punnett square) S S

s Ss Ss

F1) Genotype ⇒ 100% heter0zyg0us Ss

Phenotype ⇒ 100% stubby-nosed

There is 100% chances for a child to have a stubby nose

There is 0% chances for a child to have a long nose

These children are not purebred

Cross 2: Violet is heter0zyg0us, Ss

Parentals) Ss x ss

Gametes) S s s s

Punnett square) S s

s Ss ss

F1) Genotype ⇒ 50% heter0zyg0us Ss and 50% h0m0zyg0us recessive ss

Phenotype ⇒ 50% stubby-nosed and 50% long-nosed

There is 50% chances for a child to have a stubby nose

There is 50% chances for a child to have a long nose

These children are not purebred

----------------------------

You can learn more about single gene crosses at

brainly.com/question/12653314?referrer=searchResults

7 0

2 years ago

Hello can someone please help me fill in this blank:

77julia77 [94]

Answer:

Homo sapiens

Explanation:

I am so sorry if I get it wrong

6 0

3 years ago

Would you expect a shrub or dandelion (dispersed by wind-blown seed) to be a more likely pioneer plant species? why? Thank you s

S_A_V [24]

Answer:

Dandelions may appear quicker after harsh conditions and reproduce at a faster rate. However, both dandelions and shrubs are considered fast-growing plant species that can be categorized as pioneer species.

Explanation:

Secondary succession refers to the changes that take place in a disturbed habitat. Pioneer plant species are those that colonize new habitats after harsh climate conditions and that tend to reproduce at a fast rate.

According to researcher J.W. Darlling (2008), pioneer herbs and shrubs are species that tend to grow faster in comparison to other species, making them excellent pioneer species.

This occurs thanks to plants that are wind-pollinated, such as dandelions, have a higher chance to appear because, as it is a disturbed environment, there are no insects or other fauna present. In addition, shrubs are persistent species that are able to reproduce fast with limited soil availability but a bit slower in comparison to dandelions.

3 0

3 years ago