1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
iren2701 [21]
3 years ago
7

Did the T. Rex have an amniotic egg?

Biology
1 answer:
Ierofanga [76]3 years ago
6 0
<h2>A </h2>

I mean isn't it obvious

You might be interested in
Which of the following structures help the cell remove wastes:
drek231 [11]

Answer:

Vesicles help the cell remove wastes

4 0
3 years ago
Read 2 more answers
The interaction between DNA and histone proteins (forming nucleosomes) plays a key role in the regulation of gene expression in
ladessa [460]

Answer:

A. The chromatin near cis-regulatory sequences will be more closed and there will be less transcription.

Explanation:

In the presence of histones, the cis-regulatory sequences of DNA like promoter, enhancers etc. are not exposed. The function of the histone acetyltransferases (HATS) is to cause chromosome decondensation i.e. removal of histones from the DNA so that transcription of the DNA could occur. Histone acetyltransferases (HATS) cause acetylation of lysine amino acid of the histone proteins. Acetyl group is negatively charged so the acetylation of histone proteins leads to the removal of their positive charge which ultimately leads to the decrease in the interaction between N terminal of histones and negatively charged phosphate group of the DNA molecule. As soon as histones are removed from the DNA where cis-regulatory sequences are located, the DNA becomes accessible for transcription.

But here a drug has been added which blocks the activity of histone acetyltransferases (HATS) in cancer cells. So it is quite evident that in these cells, histones will not get removed from the cis-regulatory sequences of DNA so the DNA will be more closer or tightly packed as a result of which  less transcription will occur.

7 0
3 years ago
During dna replication, the enzyme dna polymerase adds new nucleotides to the ______ end of the sugar in the growing strand
NeTakaya

<em>During dna replication, the enzyme dna polymerase adds new nucleotides to the </em><em>3</em><em>'</em><em> end of the sugar in the growing strand</em>

4 0
2 years ago
The atomic mass of an element is equal to the:
arlik [135]

The answer should be the third option "number of protons and neutrons." The atomic mass of a element is equal to the amount of protons, and neutrons added together in that element. So for example if we are trying to find the atomic mass of hydrogen you would add the total amount of protons and neutrons together to find it's mass although it doesn't equal the exact amount of it's mass but it's close.

Hope this helps.

4 0
3 years ago
What happens to all the weight of the food we eat
Margarita [4]

Answer:

All the weight of food we eat can happen in many ways. It can be digested and turned into waste. It can also be turned into body fat. The weight of the food we eat can help give us nutrition and vitamin s.

Explanation:

The weight of food can slightly go away due to food going in to the digestion system and turns into waste.

Apologies if this isn't the best answer.

5 0
3 years ago
Other questions:
  • What is the relationship between hydrogen bonds and polar attractions?
    15·2 answers
  • A baby is assessed at one minute after birth according to the apgar scale. three of the five vital signs are good, but the baby
    13·1 answer
  • Which is an inference?
    9·1 answer
  • During the process of cellular respiration, energy is realeased from what<br>​
    14·1 answer
  • ??? ?????????????? ???????
    15·1 answer
  • If pink snapdragons of the F1 hybrids (RW) are crossed with red snapdragons of the parent plant (RR), what will be the ratio of
    7·2 answers
  • What happens as the mass of the sun increase during the formation of the solar system?
    13·1 answer
  • Ricky observed this organism under the microscope.
    5·1 answer
  • How do animal behaviors lead to successful reproduction and growth of their young?
    12·1 answer
  • Which human action has not lead to significant changes in Earth’s biomes?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!