answer.
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
ivanzaharov [21]
2 years ago
5

A pea plant that has round seeds has the genotype Rr. It is crossed with a pea plant that has wrinkled seeds and the genotype rr

. What is the probability that the offspring will have wrinkled seeds?
(A) 0 percent
(B) 25 percent
(C) 50 percent
(D) 75 percent

Biology
2 answers:
Nataly [62]2 years ago
6 0

Answer: The correct answer is- (C) 50 percent.

Genotype of parents are- Rr ( representing heterozygous dominant ) and rr ( homozygous recessive).

Dominant trait ( depicted by capital letter allele such as 'R' for round seeds)  masks the expression of recessive trait ( depicted by small letter allele such as 'r for wrinkled seeds').

As per the information in the question, round seeds is a dominant trait ( Rr, expressed in heterozygous dominant form) over wrinkled seeds (rr), which is recessive trait.

When the given parents are crossed, they produce offspring with the genotypes  rr ( showing wrinkled seeds) and Rr ( round seeds) in the ratio 1:1.

Thus, the probability that the offspring will have wrinkled seeds is 50 percent.

Refer punnet square.

alexandr402 [8]2 years ago
4 0
In order to answer this, you will need to set up a Punett Square (I have attached a picture). 

Since Rr is the genotype of round seeds, we know that round must be dominant to wrinkled, and therefore represented by the allele, R.

Since rr is the genotype of wrinkled seeds, we know that wrinkled must be the recessive trait, and there represented by the allele, r.

Since the Punnett Square shows that the genotype ratio is 2Rr : 2rr, or simplified, 1Rr : 1rr, we now know that there is a 50% chance the offspring will have wrinkled seeds.

You might be interested in
A teacher has asked four students to state a scientific theory. Which student is correct? Student Theory Antonio Mixing baking s
Alexeev081 [22]

Answer:

Antonio mixing baking soda with vinegar produces bubbles.

Explanation:

it is a chemical reaction and it is scientific.

4 0
2 years ago
Read 2 more answers
Sheila weighs 60 kg and is riding a bike. Her momentum on the bike is 340 kg • m/s. The bike hits a rock, which stops it complet
mina [271]

Answer:

5.7 m/s     

Explanation:

The computation of Sheila 's velocity right after she gets thrown out of the bike is shown below:

1) The Physical principle: conservation of momentum.

If there is no net external force operating on a system, so the system's total momentum is conserved

The momentum, p, is a vector magnitude that is determined as the product of the mass by the velocity:

P = mv.

2) Taking into account therefore that there is no net force on the device, Sheila and the momentum of the bike are the identical pre and post collision.

Based on this, the calculation is as follows

Momentum before the collision:

       P_1 = (mass\ of\ Sheila + mass\ of\ the\ bike) \times velocity

       P_1 = (60kg + m) \times v_1

= 340 kg m/s

Now Momentum after the collision:

      P_2 = mass\ of\ sheila \times velocity\ of\ Sheila + mass\ of\ the\ bike \times velocity\ of\ the\ bike

P_2 = 60kg \times v_2 + m \times 0 = 60kg \times v_2

P_1 = P_2

= (60kg + m) \times v_1

= 60kg \times v_2

= 340 kg .\ m/s

= 60kg \times v_2

v_2 =  \frac{340\ kg .\ m/s }{60\ kg}

= 5.7 m/s     

6 0
2 years ago
Read 2 more answers
Which factors affect the rate of deposition? Check all that apply. color of the sediment density of the sediment size of the sed
MakcuM [25]

Answer:

density of the sediment

size of the sediment

velocity of the agent of erosion

Explanation:

Deposition can be defined as the process of building up of sediment from chemical processes because the forces which are responsible for transporting Sediment are no longer sufficient enough to overcome the forces of gravity which is why density of the sediment, size of the sediment as well as velocity of the agent of erosion tend to affect

The rate of deposition due to the fact that

Larger and denser particles are heavier and land first before, less dense particles which cause round pieces of sediment settle more quickly than flat pieces .

Hence,density of the sediment,size of the sediment as well as velocity of the agent of erosion will often affect the rate deposition.

6 0
2 years ago
Read 2 more answers
If we consider the challenges posed by the Great Plate Count Anomaly, what is the primary advantage of using culture independent
nordsb [41]

Culture independent techniques is simply the use of methods in microbiology that are not based on or relies on cultivation inorder to study a microorganism in a defined ecosystem.

Independent based techniques offer a variety of advantages over the culture dependent methods.

The primary advantage of using culture independent techniques in microbiology is that culture independent techniques has the ability to identify or point out a large proportion of the microbial diversity readily and that identification on a normal state will be difficult to be observed using culture based studies or culture independent techniques.

8 0
2 years ago
You are a scientist who discovers three new species of beetles in the jungles of South America. Describe, in detail, how a prote
Elenna [48]
Since all of the three beetle species posses the protein, we can use it to determine their relations. We can study the sequence of the amino acids that make the protein and the 3D structure of the protein. The more differences there are in amino acid sequences and the structure of the protein, the species are more distantly related because they have diverged a long time ago and their genes that produce that protein have undergone many changes over time.
3 0
2 years ago
Other questions:
  • What nutrient do erythrocytes use to stay alive in a blood collection tube filled with blood? A. Calcium B. Vitamin B12 C. Iron
    11·2 answers
  • People are less likely to have certain bacterial infections now than they were 100 years ago.
    9·2 answers
  • Restrictions that are used in solver to limit the results are called
    10·1 answer
  • Noted scientist Dr. Elsa Birde described the effect of adding a mixture of dried apples and raisins to the previous feed of sunf
    11·2 answers
  • Carbohydrates and proteins are two types of macromolecules. which functional characteristic of proteins distinguishes them from
    13·1 answer
  • Which observation directly illustrates the adhesive properties of water?
    12·1 answer
  • What statement best compares photosynthesis and cellular respiration?
    11·2 answers
  • A scientist concludes that a population of bison has reached the carrying capacity of the prairie where it lives. The birthrate
    6·1 answer
  • In all of our cells there is a blueprint of life called DNA. Which characteristic does this fact best describe?
    9·1 answer
  • Is DNP and cyanide an inhibitor of cellular respiration?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!