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
Sunny_sXe [5.5K]
3 years ago
6

HELP ASAP Punnett Squares

Biology
1 answer:
pashok25 [27]3 years ago
4 0

Answer: The genotype ratio of offsprings of a cross between one homozygous tall plant and one heterozygous tall plant is 2TT:2Tt

The phenotype ratio is that all offsprings will be tall.

The genotype ratio of a cross between two heterozygous red flowers is 1RR:2Rr:2rr. The phenotype ratio is 3 Red flowers: 1 white flower.

Explanation: From the information given, tall is dominant and short is recessive while red is dominant and white is recessive.

Let T represent the allele for tall height, t represent the allele for short height, R represent allele for red flowers and r represent allele for white flowers.

The genotype of a homozygous tall plant is TT, the genotype of a heterozygous tall plant is Tt, the genotype of a heterozygous red flowered plant is Rr.

The possible genotypes of offsprings of a cross between one homozygous tall plant and one heterozygous tall plant are TT and Tt.

Tt will manifest outwardly as tall because T is dominant over t. Therefore, all the offsprings will be tall.

The possible genotypes of a cross between two heterozygous red flowers are RR, Rr and rr. RR will manifest as red, Rr will also manifest as red because R is dominant to r while rr will manifest as white because white allele (r) is recessive. Therefore 3 plants will be red-flowered while 1 plant will be white flowered.

See the attached punnet squares for details of the cross.

You might be interested in
Some fungal species can kill herbivores while feeding off of sugars from its plant host. What type of relationship does this fun
LenKa [72]

Answer:

parasitism

Explanation:

In evolutionary ecology, parasitism is a symbiotic relationship between species, where one organism, the parasite, lives on or in another organism, the host, causing it some harm, and is adapted structurally to this way of life.

4 0
3 years ago
Now that you have come up with an equation that describes the relationship between amounts of different nucleotide bases in DNA,
Colt1911 [192]

Answer:

G=21 %

T= 29 %

A= 29 %

Explanation:

Since C only binds to G, you have the same amount of C and G, so G is 21 %.

100 % minus 42 % ( 21 % C plus 21 % G=) equals 58 %.

So the other 58 % is made of T and A. Since T only binds to A , the half of the extra 58 % is T and the other half is A. Therefore 29 % is T and 29 % is A

4 0
3 years ago
Which of the following is a true statement? a. Mammals were the prominent species just before the extinction of dinosaurs. b. Ma
Angelina_Jolie [31]

Answer:

The correct answer is B.

Explanation:

Option A is wrong. Mammals were not the prominent species before the extinction of dinosaurs because the mammal species that lived during the dinosaurs' era were so small that they only weighed several grams and occupied small areas as their habitats.

Option C is wrong. As dinosaurs became extinct, reptiles and "birds" remained as their descendant which evolved to some of the species that we know today.

Option D is wrong. Pangea started to break up to form the geographic isolation for the diversion of many species around 175 million years ago.

So the correct answer is B. Massive extinction disrupts and changes the food chain in such a big way that it triggers a domino effect that leads to species adapting to their new environment and diversifying thus forming new species in the process.

I hope this answer helps.

5 0
3 years ago
How does oxygen move through the blood?
Bond [772]

Answer:

Attached to hemoglobin.

Explanation:

The oxygen is important for the cellular functioning of cell. The carbon dioxide must be move out of the cell and oxygen should reach to each and every cell of the body.

Hemoglobin molecule has the ability to binds with the four molecules of oxygen. The oxygen moves in the body by binding with the hemoglobin molecules present inside the red blood cells.

Thus, the correct answer is option (a).

3 0
3 years ago
Identify the mutagenic effects of deaminating agents, alkylating agents, and base analogs.
Mila [183]
<span>All are mutagenic because they cause base substitutions, deaminating agents oxidatively deaminate bases so cytosine converted to uracil and adenine converted to hypoxanthine, uracil pairs with adenine and hypoxanthine pairs with cytosine, alkylating agents donate alkyl group to amino or keto groups altering base pair affinities</span>
7 0
3 years ago
Other questions:
  • Which stem cells are capable of the most limited differentiation?
    14·2 answers
  • Increase blood pressure <br> Increase blood volume <br> Decrease blood volume
    13·1 answer
  • The region of the brain that is involved in conscious thought and intellectual function as well as processing somatic sensory an
    5·1 answer
  • Which process is catalyzed by rubisco during the light-independent reaction of photosynthesis
    9·1 answer
  • Which main plant tissue is shown in green?<br> dermal<br> ground<br> vascular<br> meristem
    9·2 answers
  • What is the most significant difference between freshwater aquatic ecosystems and marine ecosystems?​
    7·2 answers
  • What is used to pass exciting electrons in the thylakoid membrane?
    11·1 answer
  • Why are lipids better suited than carbohydrates for long-term energy storage?.
    5·1 answer
  • What organism aids your body with digestion?
    10·1 answer
  • Which statement accurately compares these flashlights?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!