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leva [86]
3 years ago
7

Scientist believe that about 20 to 25% of the universe is made of

Biology
2 answers:
zvonat [6]3 years ago
6 0
I think its dark matter 
ololo11 [35]3 years ago
3 0

Answer:

The answer is Dark Matter.

Explanation:

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During Mendel's first set of experiments, he allowed true-breeding tall plants
castortr0y [4]

Answer:

Explanation:

What Mendel wanted to happen was to obtain middle-sized plants. What actually happened was that Mendel got tall plants. Due to this result, Mendel called Reccesive to the genes thatdetermined the short offspring, and Dominant to the genes that determined the tall offspring.

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3 years ago
Wide shield-like mountains are formed from what type of lava?
SVEN [57.7K]
The answer is Basaltic Lava. Hope this Helped You G
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3 years ago
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Why do you think that some definitions of forest have a certain percentage of the land that must be covered in trees?
Mashutka [201]

Answer:

30 percent tree cover - 2000 - 2009JPEG ... of forest cover vary widely—as much as 6 percent of Earth's land area, or the equivalent area of China.

Explanation:

4 0
3 years ago
Given the parents AABBCc × AabbCc, assume simple dominance for each trait and independent assortment. What proportion of the pro
Anit [1.1K]

Answer:

3/4

Explanation:

If we assume simple dominance and independent assortment for each trait, we can use Mendel's Law of Segregation to predict the phenotypic proportions in the offspring of the parental cross AABBCc x AabbCc.

<h3><u>Gene A</u></h3>

AA x Aa

  • F1 genotypes: 1/2 AA, 1/2 Aa
  • F1 phenotypes: all A
<h3 /><h3><u>Gene B</u></h3>

BB x bb

  • F1 genotypes: 1 Bb
  • F1 phenotypes: all B
<h3 /><h3><u>Gene C</u></h3>

Cc x Cc

  • F1 genotypes:  1/4 CC, 2/4 Cc, 1/4 cc
  • F1 phenotypes: 3/4 C, 1/4 cc

We want to know the proportion of progeny with all dominant phenotype (A_B_C_). Since the genes are independent, we can multiply the probabilities of each gene to obtain the overall probability of having a ABC progeny:

<h3>1 A_ x 1 B_ x 3/4 C_ = 3/4 A_B_C_</h3>
6 0
3 years ago
Which of the following statements is true?
Lisa [10]

Answer: All membrane lipids are amphipathic

Explanation:

The membrane lipid molecules are amphathic in nature which states that they are both hydrophobic and hydrophillic part. The lipid bi layer has been found tot be the most widely found in cell structure.

The structure is made of phosphorus and lipids and hence called as phospholipids.

The amphipathic nature of the lipids allows it to assemble spontaneously into bi layers even under the artificial conditions.

hence, all the lipids in the cell membrane or membranes are amphipathic in nature.

6 0
3 years ago
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