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
Zina [86]
2 years ago
8

In a plant species, you notice that purple and yellow leaf colors segregate. Interestingly, hairy and smooth stems segregate, as

well. You cross a true-breeding plant with purple leaves and hairy stems to a true-breeding plant with yellow leaves and smooth stems. You testcross the F1 from this cross to generate the following testcross progeny.Phenotypes yellow leaves, hairy stems purple leaves, hairy stems purple leaves, smooth stems yellow leaves, smooth stems Numbers 68 66 22 25 Total: 181 a) Indicate the most likely genotypes of each parent. b) What pattern of inheritance could explain the progeny results? Based on your answer, what ratios would be expected for the four classes of progeny? c) Using the chi-square method, test your ratios and indicate whether you accept them or reject them.
Biology
1 answer:
VladimirAG [237]2 years ago
5 0

Answer:

Can u take a pic of the question

You might be interested in
Starting with the basic building blocks, which is the correct order of levels of
Kruka [31]
Lungs, lung cells, lung tissues
8 0
3 years ago
Akeelah extended her arm in front of her and then extended one of her fingers. She focused on that finger. Next, she closed her
blsea [12.9K]

Answer: Binocular disparity.

Explanation:

Binocular disparity is the slight difference between the points of view provided by both eyes. This difference in image location is what our brain uses to perceive depth from two-dimensional images provided by each eye.

6 0
3 years ago
Please help i need to turn this in
makvit [3.9K]

Answer:

Normal Strand: alanine - methionine - histidine
Mutated Strand: glutamine - cysteine - no third amino acid.

Explanation:

<h3>mRNA Structure</h3>

Messenger ribonucleic acid (mRNA) is the RNA that is used in cells for protein synthesis. It has a single strand made by the transcription of DNA by RNA polymerase. It contains four nucleotides: Adenine (A), Guanine (G), Cytosine (C), and Uracil (U).

<h3>DNA Replication</h3>

Before transcribing, we need to create the complementary strand of the DNA. We're going to write out the nucleotides of the complementary strand by matching the nucleotides in these pairs: (A & T) and (C & G).

              Normal Strand: GCA ATG CAC
Complementary Strand: CGT TAC GTG

Next, we can transcribe this to find our mRNA. We're going to do the same thing to the complementary DNA strand, but with Uracils instead of Thymines. So our pairs are: (A & U) and (C & G)

Complementary DNA Strand: CGT TAC GTG
                        mRNA Strand: GCA AUG CAC

You'll notice that the mRNA strand is almost exactly like the new mRNA strand, but with Uracil instead of Thymine.

<h3>Reading Codons</h3>

Each set of three nucleotides is known as a codon, which encodes the amino acids that ribosomes make into proteins. To read the codons, you need to have a chart like the one I attached. Start in the middle and work your way to the edge of the circle. Some amino acids have multiple codons. There are also "stop" and "start" codons that signify the beginning and ends of proteins.

mRNA Strand: GCA AUG CAC
Amino Acids:   Ala   Met   His

Our sequence is alanine, methionine, and histidine.

<h3>Frameshift Mutations</h3>

A frameshift mutation occurs when a nucleotide is either added or removed from the DNA. It causes your reading frame to shift and will mess up every codon past where the mutation was. This is different than a point mutation, where a nucleotide is <em>swapped</em> because that will only mess up the one codon that it happened in. Frameshift mutations are usually more detrimental than point mutations because they cause wider spread damage.

<h3>Mutated Strand</h3>

Let's repeat what we did earlier on the mutated strand to see what changed.

              Mutated Strand: CAA TGC AC
Complementary Strand: GTT ACG TG
---
Complementary DNA Strand: GTT ACG TG
                        mRNA Strand: CAA UGC AC
---
mRNA Strand: CAA UGC AC
Amino Acids:   Glu   Cys   X
---
Our amino acid sequence is glutamine, cysteine, and no third amino acid.

As you can see, removing the first nucleotide of the strand caused every codon to change. The last codon is now incomplete and won't be read at all. If this happened in a cell, the protein that was created from this mutated strand would be incorrect and may not function completely or at all.

5 0
2 years ago
Read 2 more answers
The caplike structure on a sperm cell that helps aid egg penetration is called the
madreJ [45]
I think it's called the Acrosome
7 0
3 years ago
I need help on this ASAP!! Cellular respiration and photosynthesis
katrin2010 [14]

Answer:

1 and 3

Explanation:

3 0
3 years ago
Other questions:
  • What tells the cell what to do
    8·2 answers
  • What are the main differences between eukaryotes, prokaryotes, and viruses?
    8·1 answer
  • what form is energy when it enters a food chain? and what does it look like when it leaves a food chain?​
    15·1 answer
  • Which is an example of the use of plants in human society? Fossil fuel usage causes the elimination of carbon sinks. Plants make
    11·2 answers
  • The elevation of the basement floor in a building is -14 ft. The elevation of the roof is 36 feet. What is the distance from the
    6·1 answer
  • What causes an ionic bond?
    9·1 answer
  • A
    15·1 answer
  • (I will give a Brainliest) Can liquid water and steam exist at 100°C?
    14·2 answers
  • Why is a sea otter a “keystone”??
    14·2 answers
  • LaRena has a sample of water at a temperature at 1 atm
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!