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sineoko [7]
3 years ago
14

What are two jobs of the cell membrane?

Biology
1 answer:
Katarina [22]3 years ago
4 0
The cell membrane is a barrier. It protects the inside from harmful bacteria outside. 
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a. What do the letters R and I represent ? b. What is the genotype of the pink-flowered snapdragons? c. Explain whether the alle
-Dominant- [34]

Answer:

a) R= allele for red colored flower

I= Allele for ivory flowers

b) Genotype of pink flowered plant: RI

c) Incomplete dominance

d) 100%

Explanation:

When the dominant allele is not able to fully mask the expression of the recessive allele in the heterozygous state, it is said to be incomplete dominance. The R and I alleles impart red and ivory color respectively to the flowers of the snapdragon plant. The heterozygous genotype "RI" imparts a pink color to the flowers and therefore, the alleles are said to exhibit incomplete dominance.

The genotype of red-flowered snapdragon plant = RR. The genotype of ivory flowered snapdragon plant= II. When a red-flowered snapdragon plant is crossed with an ivory flowered snapdragon plant, the progeny is heterozygous in nature with the "RI" genotype. The phenotype of the progeny is "Pink flower" since the R allele is incompletely dominant over the allele I.

5 0
3 years ago
The skeleton is divided into two categories. The Axial Skeleton consists of the cranium, vertebrae, and ribs, while the Appendic
Nastasia [14]

Answer: i would say arms a legs!

Sorry if this is wrong also :(

Explanation: But i hope this helps you! Sorry if this is wrong also :(

6 0
3 years ago
Atp energizes other molecules in cells by transferring a(n) ________ to those molecules
ICE Princess25 [194]

Atp energizes other molecules in cells by transferring a phosphate groups to those molecules.

<h3>What about phosphate group?</h3>
  • A functional group that has an atom of phosphorus linked to four atoms of oxygen (three single bonds and one double bond).
  • If there isn't a link between one of these oxygen atoms and another atom, the structure is a phosphate ion.
  • Proteins require phosphate groups to be activated in order to carry out specific tasks in cells.
  • The process of phosphorylation, which involves the addition of a phosphate group, activates proteins.
  • All living things phosphorylate proteins at some point.
  • Bone and teeth are formed with the help of phosphate.
  • Additionally, phosphorus is a component of a number of essential compounds, such as those that the cell uses for DNA, cell membranes, and energy (deoxyribonucleic acid).
  • Phosphorus is a mineral that the body gets from food and excretes in urine and occasionally stooll.
  • The part of the DNA double helix that gives the molecule's structure support is known as the phosphate backbone.

Learn more about phosphorus group here:

brainly.com/question/18853012

#SPJ4

7 0
2 years ago
What is the main thing plants compete for in poor soil
pashok25 [27]

Answer:

water

Explanation:

in poor soil most of the water would get sucked up into more powerful plants [larger plants]

4 0
3 years ago
What is the structure of the middle ear?​
m_a_m_a [10]

Explanation:

The middle ear is an air-filled cavity that sits between the tympanic membrane and the inner ear. The middle ear also consists of three tiny bones called ossicles , the round window, the oval window , and the Eustachian tube .

4 0
3 years ago
Read 2 more answers
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