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ser-zykov [4K]
3 years ago
6

A mushroom growing around a tree trunk is an example of what

Biology
1 answer:
Aliun [14]3 years ago
5 0

Answer:

Mushrooms indicate root or trunk problems

Mushrooms typically grow on dead wood or on some other matter that is rotting.

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Barred feather pattern is a Z-linked dominant trait in chickens. What offspring would you expect from (a) the cross of a barred
Bezzdna [24]

Answer:

Let the "barred" allele be caller B and the "non-white" allele b. Since chickens use chromosomes Z  and W to determine sex, hens would have chromosomes ZW, and roosters would have chromosomes ZZ. A Z-linked gene is represented as a superscript on the Z chromosome, Z^{B} for the dominant allele and Z^{b} for the ressesive allele.

A barred hen would have a copy of B on its Z chromosome, a non-barred rooster would have both copies of b on both Z chromosomes. Using Punnet squares to represent the crosses we get the following cases:

\begin{center}\begin{tabular}{ |c|c|c|c| }\ & Z^{B} & W \\ \ Z^{b} & Z^{B}Z^{b} & Z^{b}W \\ \ Z^{b} & Z^{B}Z^{b} & Z^{b}W \\ \end{tabular}\end{center}

That is a ratio of two barred heterozygote roosters to two non-barred hens. Crossing them we get:

\begin{center}\begin{tabular}{ |c|c|c|c| }\ & Z^{b} & W \\ \ Z^{B} & Z^{B}Z^{b} & Z^{B}W \\ \ Z^{b} & Z^{b}Z^{b} & Z^{b}W \\ \end{tabular}\end{center}

That is a ratio of one barred heterozygote rooster to one barred hen to one non-barred rooster to one non barred hen.

6 0
3 years ago
What happens to the energy at the plant level? Be specific!
Iteru [2.4K]

Answer:

It gets turned into sugars and nutrients so the plant can grow.

7 0
2 years ago
Which of the following can be used to cut DNA so it can be studied?
ICE Princess25 [194]

The best answer is A.

A restriction enzyme is an enzyme that catalyzes the cleavage of DNA after recognizing a specific sequence of DNA.

Restriction enzymes are proteins produced by bacteria that cut  DNA at specific sites. These enzymes are used by bacteria to defend against bacterial viruses known as bacteriophages.  When a phage infects a bacteria, it inserts  its DNA into the bacteria so as to be replicated.

The restriction enzyme thwarts the replication of the phage DNA  by cutting it into many pieces. These enzymes  have been isolated from bacteria by scientists and used as indispensable tools in recombinant DNA technology.

3 0
2 years ago
10 POINTS AND BRAINLIEST
lora16 [44]

Answer:

C) Mitosis.

Explanation:

Mitosis is used to produce daughter cells that are genetically identical to the parent cells. The cell copies - or 'replicates' - its chromosomes, and then splits the copied chromosomes equally to make sure that each daughter cell has a full set.

Hope this helps!-Cheesy

7 0
3 years ago
Read 2 more answers
The nurse is beginning the examination of a 4-month-old infant. She takes the infant from the mother's arms to do the exam. Wher
ElenaW [278]

Answer:

In the crib facing the mom.

Explanation:

The infants require the proper medical attention and parental support during any examination. The parental support makes the infant comfortable and reduces his fear.

If the nurse wants to perform any examination on the infant she must place the infant with the position that can allow the infant to see his parent. This provide support to the infant. The crib facing the mom is quite comfortable that keeps the parent in the view.

Thus, the answer is in the crib facing the mom.

7 0
3 years ago
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