Ask question

Ask question

All categories

3 years ago

15

A cross-sectional view of a log shows a concentric pattern. Which part of the stem gives rise to this pattern?

1 answer:

Ivenika [448]3 years ago

5 0

A cross-sectional view of a log shows a concentric pattern. Which part of the stem gives rise to this pattern?

B. Xylem

as it contribute for most of a tree's growth in diameter.

You might be interested in

What local effect would an rna synthesis inhibitor have on dna replication?

MrMuchimi

<span>Primase would not be able to provide primers for DNA polymerases.</span>

3 0

3 years ago

Sam likes iced coffee and her mom likes hot coffee. Sam poured the same amount of hot coffee into a glass with ice as her mom po

Ksju [112]

Sams drink was colder therefore didn’t melt the sugar like the hot coffee did so C)

6 0

2 years ago

Read 2 more answers

Help please! DNA Assignment

vovangra [49]

Answer:

DNA Replication:

Replicate the following strand of DNA:

Original DNA: A T G A A C CA T T C A G T A T G G

Complementary DNA:

Remember that the complimentary base pairs in DNA are Adenine-Thymine and Guanine-Cytosine, or A-T and G-C. This means that if the original sequence is:

A T G A A C C A T T C A G T A T G G

Then the compliment is (replace with the opposite base pairs):

T A C T T G G T A A G T C A T A C C

Transcription:

Transcribe the DNA to make an mRNA molecule

COMPLIMENTARY DNA:

mRNA Molecule:

So if our complimentary DNA (antisense stand) is T A C T T G G T A A G T C A T A C C then to transcribe, we basically create another complimentary strand, but for mRNA, we use Uracil instead of Thymine:

A U G A A C C A U U C A G U A U G G

Translation:

Translate the mRNA into the corresponding amino acids.

mRNA MOLECULE:

AMINO ACID:

Using the DNA sequence provided, determine the amino acids.

Next, take each codon (3-base set) to the table and record the corresponding protein:

A U G = Methionine (start)

A A C = Asparagine

C A U = Histidine

U C A = Serine

G U A = Valine

U G G = Tryptophan

ORIGINAL DNA: A T G G G T C T A G C G A A A G A T

Complementary DNA:

mRNA DNA Molecule:

Amino Acid:

And we do it all again:

A T G G G T C T A G C G A A A G A T = original DNA

T A C C C A G A T C G C T T T C T A = complementry DNA

A U G G G U C U A G C G A A A G A U = mRNA

A U G = Methionine (start)

G G U = Glysine

C U A = Leucine

G C G = Alanine

A A A = Lysine

G A U = Aspartate

Explanation:

4 0

2 years ago

Male body cells only have one X chromosome, while females have two X chromosomes. It is hypothesized that if both X chromosomes

Dmitry [639]

C X-inactivation "switches off" one of the X chromosomes.

Explanation:

3 0

3 years ago

Please help! c:

patriot [66]

I think I understand even without the picture. I'll add a picture of the Punnett Square filled in, but what you're crossing is

Tt x tt (heterozygous crossed with a homozygous recessive)

The ratio you get in the end is 2 heterozygous (Tt) and 2 homozygous (tt) offspring, so the ratio is 1:1.

So the percentage of offspring that are homozygous recessive is 50%.

8 0

2 years ago