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Viktor [21]
3 years ago
10

In a mating between two individuals that are heterozygous for a recessive lethal allele that is expressed in utero, what genotyp

ic ratio (homozygous dominant:heterozygous:homozygous recessive) would you expect to observe in the offspring?
1:2:1
3:1:1
1:2:0
0:2:1
Biology
1 answer:
musickatia [10]3 years ago
6 0

Answer: 1:2:0

Explanation:

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A mutagenic process that alters the chromosome segment
kicyunya [14]

Answer:

This single nucleotide change alters only one amino acid in the protein chain

Explanation:

8 0
3 years ago
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Fresh raspberry contains 80% water. dried raspberry contains only 20% water. what weight of dried raspberry can you get from 36
adell [148]

There 2 ways to solve this

1-      Directly :

80% of water in the fresh berries è 20% of water in the dried berries

36 Ibs of the fresh berries è X Ibs of the dried berries

X = \frac{36 * 20}{80}<span> = 9 Ibs</span>

 

<span>2-      </span>If you do not understand the first method, the second one is more explicit:

First, we gonna calculate the weight of the berries without water (dehydrated):

<span>36 * 80% = 28.8 Ibs    (of water in the berries)</span>

Then:

<span>36 – 28.8 = 7.2 Ibs (of completely dehydrated berries)</span>

 

Next, we gonna add 20% of water in the dehydrated berries:

X (total weight of dried berries) è 100%

7.2 Ibs of dehydrated berries è 80%

X = <span>  </span>\frac{7.2 * 100}{80}   = 9 Ibs

4 0
3 years ago
The table lists organisms and the ways they use their exoskeletons.
victus00 [196]

Answer:

c

Explanation:

8 0
3 years ago
Read 2 more answers
Which statement best predicts why a cell's progression through the cell cycle might be halted by the G1/S checkpoint?
velikii [3]

Answer:

The missing options are:

A. Spindle fibers have not correctly attached to chromosomes.

B. Damage occurred to DNA when it was being copied in G1.

C. There are not enough nucleotides available to construct new DNA.

D. Proteins necessary for M phase of the cell cycle have not been produced.

The correct option is <u>C.There are not enough nucleotides available to construct new DNA.</u>

Explanation:

During the G1 phase, the cell grows in size since it prepares its organelles and molecule combinations for the next phase of the cell cycle, the S phase. Before the cell transitions to the S phase, it has to pass through a checkpoint that makes sure that there are no mutations, it has grown enough, and has the necessary molecules for the next phase, which is the synthesis of DNA. If there are not enough nucleotides, the cell will not be able to synthesize new DNA in the S phase, so the checkpoint stops the cells from moving to this phase till it has all the necessary things to do it.

4 0
4 years ago
If there were no other changes in the habitat, would the value under "Larger Than Ample" be correct? Why or why not?
Norma-Jean [14]

Answer:

No

Explanation:

If they were no more changes in the habitat, the value under larger that ample would not be correct this is because no spectacular changes has occur in the habits that could bring about a ample change. Habits is the environment an organism dwell and a change in the environment will affect positively or negatively the organism leaving there in.

An ample change can be seen if their is a modification in the environment that will better improve the livelihood of the organism.

Producer transfers energy from trophic level one to other organism, if the amount of producer is increased, a change in the habitat can be ample and positive because energy flow increases.

3 0
4 years ago
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