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yan [13]
3 years ago
7

Blue-eyed mice interbreed and produce progeny with a 2:1 ratio of blue to non-blue. When blue is crossed with nonblue, a 1:1 rat

io of the two classes is obtained. Non-blues interbreeed to produce all non-blue offspring. Explain these observations. Support your explanation with details about phenotypes and genotypes.
Biology
1 answer:
loris [4]3 years ago
4 0

Explanation:

The results are explained if the trait blue eyes is dominant (B) over non-blue (b) and the dominant allele B is lethal in homozygous individuals.

<u>The possible genotypes and phenotypes are:</u>

  • Homozygous dominant (BB): lethal
  • Heterozygous (Bb): blue eyes
  • Homozygous recessive (bb): non-blue eyes

When blue (Bb) is crossed with non-blue (bb) the resulting offspring is 1/2 blue (Bb) and 1/2 non-blue (bb).

When non-blues interbreed (bb X bb) all progeny is non-blue (bb).

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Which color in the visible spectrum did you hypothesize would cause the most plant growth?
kupik [55]

Answer: I would say blue

Explanation: Blue substantially helped plants grow. Along with the rest of the colors. The only colors that didn't grow that much were green and yellow

8 0
3 years ago
4. For the picture can you answer 3 or 4 please Based on your knowledge about prokaryotic cells and
Lelu [443]

Answer:

For number 3:

The bacterial cell is a prokaryotic cell and the fungal cell is a eukaryotic cell.

Explanation:

I cannot see the cells to answer number 4, but for number three, bacteria is a prokaryote and fungal cells are eukaryotes. You can most likely determine this by the presence of a nucleus (a prokaryote cell will not have one where a eukaryotic cell will).

3 0
3 years ago
What is the pH of a 0.00125 M HCl solution?
timofeeve [1]

Answer:

pH=2.9

Explanation:

Hello,

In this case, the pH is computed by:

pH=-log([H^+])

Whereas the concentration of hydrogen ions equals the concentration of the acid for strong acids such as hydrochloric acid (HCl) due to its complete ionization in solution, which means that such concentration is 0.00125 M. Thus, the pH turns out:

pH=-log(0.00125)\\\\pH=2.9

Regards.

4 0
3 years ago
Newsweek in 1989 reported that 60% of young children have blood lead levels that could impair their neurological development. As
Kamila [148]

Answer:

The answer is 83.38%.

Explanation:

The probability of young children having blood levels that impair their neurological development is given as 60% in the question. To find the probability of at least 5 children out of 10 in a sample having said blood levels, we need to use the binomial probability.

n represents the total number of children in the sample so n = 10 and p is the probability of the children having blood levels causing the problem which is 60% so p = 0.6.

We want the probability of it being observed for 5 or more children and that is P(x\geq 5). If we subtract the P( x\leq 4) from 1, which is the probability of not observing the condition in 5 or more children, we will have the P(x\geq 5).

1 - P(x\leq 4) = 1 - pbinom(4, 10, 0.6) which are the probability range in the function, the sample size and the probability of observing the condition respectively.

The result is 1 - 0.1662 = 0.8338 which means that the probability that is asked is 83.38%.

I hope this answer helps.  

8 0
3 years ago
How far did you move a 4.7N object if it used 40J of work?
Katyanochek1 [597]

Explanation:

Data:

F= 4.7 N

w= 40J

a= ?

Solution:

F= m a

4.7= 40 a

a = 4.7÷ 40

a = 0.1175 m/s

a =

5 0
2 years ago
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