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serg [7]
3 years ago
11

What did Matthias Schleiden contribute to our understanding of cells?

Biology
2 answers:
givi [52]3 years ago
7 0

The right option is; All plants are made of cells.

Matthias Schleiden was a German botanist, and cofounder (with Theodor Schwann) of the cell theory. Schleiden demonstrated that all plants were aggregates of cells, and cell products, and that all the mechanisms of plant physiology, occurs due to the activities of the cells. He stated that the nucleus, which he called the cytoblast, was an important part of all plant cells. Matthias Schleiden also described many possible methods cell formation.



svetoff [14.1K]3 years ago
3 0
<span>3. All plants are made of cells. </span>
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Albinism is a recessive trait in humans that is controlled by a single gene. How many recessive alleles must a person have to ha
olga_2 [115]
Answer;
Two recessive alleles are the number of alleles that a person must have to have albinism.

Explanation;
When a trait is recessive, such as albinism, an individual must have two copies of a recessive allele to express that particular trait. Recessive alleles are denoted by a lowercase letter , such as b versus B. Only individuals with a bb genotye will express a recessive trait, hence, the offspring must receive one recessive trait from each parent to exhibit the recessive trait. 

6 0
2 years ago
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Anne was observing a cell under a microscope which was undergoing binary fission. Which type of cell was Anne observing? Eukaryo
Anna11 [10]
Prokaryotic cells undergo binary fission
7 0
3 years ago
What is the probability of a heterozygous offspring explain your answer?
maw [93]
There is going to be a 25% chance of it being heterozygous unless both parents are heterozygous then if so you do happen to have to heterozygous parents it will be 100% heterozygous.
4 0
3 years ago
What does this timeline suggest about the feminist movement?​
Lapatulllka [165]

Answer:

The movement pursued social, legal, and political equality.

Explanation:

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7 0
2 years ago
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Assume that long fingers are inherited as a recessive trait with 80% penetrance. Two people heterozygous for long fingers mate.
Strike441 [17]

Answer:

The answer is 60%.

Explanation:

Let's take the capıital letter L for the dominant long finger gene, and l for the recessive long finger gene.

The two heterozygous people with long fingers mate which means their genotypes are Ll or lL.

The probability of their first child having a heterozygous genotype is 50%. The probability of having dominant homozygous genotype LL is 25% and the probability of having recessive homozygous genotype ll is also 25%.

It is stated that the long finger trait is a recessive trait with 80% penetrance which means that even if the genotype suggests that the trait will be observable, it is only 80% of the time.

There is a 75% chance that their first child will inherit the recessive long finger trait gene l and with an 80% penetrance, the probability of the child having long fingers is 60%.

I hope this answer helps.

6 0
3 years ago
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