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Brilliant_brown [7]
3 years ago
11

A cactus can either have long needles (L) or short needles A cactus grower crosses two cacti. The cross is shown in the Punnett

square below. What is the phenotype ratio for this cross?

Biology
2 answers:
Stells [14]3 years ago
7 0
A is the correct answe. This is correct because you if you follow the l’s on the square you see 3 long and one short. Therefore A is the answer
tia_tia [17]3 years ago
6 0

Answer:

A. 3 long one short

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What type of mutation is shown in the sequence below
almond37 [142]

Answer:

Single nucleotide deletion

Explanation:

Original DNA sequence:

A T A C G G T A

T A T G C C A T

Mutated DNA sequence:

A T C G G T A G

T A G C C A T C

​In the mutated sequence, there is a nucleotide missing. It goes from ATACGGTA to ATCGGTAG. The A nucleotide is gone. This represents a single base pair deletion.

Even though it is only one base, this changes the way the entire sequence is interpreted. The DNA transcribed into an mRNA and then translated into a protein by reading triplet codons which correspond to specific amino acids.

So while the initial sequence would be read as:

ATA, CGG, TA...

The new sequence would be read as:

ATC, GGT, AG...

So the sequence of the protein is completely altered.

7 0
3 years ago
There are only about 40 different tRNAs in a cell even though 61 codons code for amino acids. This discrepancy can be attributed
bogdanovich [222]

Answer:

The correct answer is - wobble; the curvature of the anticodon loop; inosine.

Explanation:

The wobble phenomenon or hypothesis tells that why there are multiple codons are present for a single amino acid. 20  amino acids are coded by 61 codons. It states that tRNA can identify and attach to more than one amino acid due to the curvature of the anticodon loop.

The curvature of the anticodon loop is that the base at the 1st position on the anticodon to binding but the less-precise base pairs that can arise between the 3rd base of the codon. The inosine is the nucleoside that presents in a position in the curvature of the anticodon loop and its position responsible for wobble as well.

3 0
3 years ago
Which of the following best explains why most chemical reactions proceed more quickly when the concentrations of reactants are i
dem82 [27]
At higher concentrations, it catalyzes the collisions. think of it like a glow-stick. the smaller ones aren't a bright because less chemicals are inside the tube, but large glow-sticks are brighter, and has more chemicals contained in the tube. the correct answer is 3, the catalyst  answer. <span>At higher concentrations, product molecules are able to catalyze the reaction.
 hope this helped. good luck!
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7 0
4 years ago
Choose the equation that represents an exponential function that passes through the point (2, 36).
Alla [95]
Since we were given only one point, we have to test each exponential function for the point (2,36).

Since exponential functions are of the form y=n(a)^{kx}, The correct option is between option A and option C.

For option A,

f(x)=4(3)^{x}

On substitution, we have;

36=4(3)^{2}

\Rightarrow 36=4\times 9

\Rightarrow 36=36.

Since the point satisfied the exponential function f(x)=4(3)^{x}, the exponential function goes through it.

Hence the correct answer is option A.

No need to test for option C again.
4 0
3 years ago
Read 2 more answers
How do you calculate the total magnification<br> from eyepiece lens and objective lens?
aksik [14]
Multiply by the power of the eyepiece, usually 10x.
8 0
4 years ago
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