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
Ksju [112]
2 years ago
9

In man, hitchhiker's thumb is domiant to a straight thumb, and brown eyes is dominat to blue eyes. If a man that has a straight

thumb and brown eyes in the heterozygous form marries a woman that is heterozygous for hitchhiker's thumb and blue eyes, what is the chance that one of their children will have a straight thumb and blue eyes?
Biology
1 answer:
pogonyaev2 years ago
6 0

Answer:

25%

Explanation:

T = Hitchhiker's thumb

t = straight thumb

B = Brown eyes

b = blue eyes

The man's genotype is ttBb

The woman's genotype is Ttbb

Make a dihybrid punnett square to find the possible genotypes of the offspring

ttbb is straight thumb and blue eyes. There are 4 out of 16 genotypes with this phenotype so:

Divide 4 with 16 and multiply by 100 to get the percentage of offspring with that phenotype

4 ÷ 16 = 0.25

0.25 × 100 = 25%

You might be interested in
Listen
Inessa05 [86]

Answer:

A scientist's response to the increase in food poisoning sick patients should be examining the type and source within the foods consumed.

Explanation:

Food poisoning involves the effects that decomposed or contaminated food can have on a group of people who eat it, and can cause illness in all or most individuals.

Although patients' symptoms should be treated and preventive education provided, the best course of action for a scientist is to investigate the cause.

The response of a scientist to the increase in food poisoning cases is to determine the type and source of food, as well as the nature of the alteration it has -decomposition, contamination, bacteria- in order to <u>eliminate the source and avoid new cases</u>.

  • <em>The other options may be valid in the face of the appearance of food poisoning cases, but they are not the best procedure with which a scientist would respond. </em>
4 0
2 years ago
Why might a scientist want to disrupt the plasma membrane and how might they do this experimentally?
kupik [55]

It is possible to disrupt the plasma membrane by using enzymes and/or detergent agents.

<h3>What is the plasma membrane?</h3>

The plasma membrane is a lipid bilayer that is mainly composed of phospholipids and cholesterol.

In laboratory conditions, it is possible to disrupt this lipid bilayer by using detergent and proteins (enzymes) that break the bonds binding phospholipids.

For example, enzymes can break down the double bonds that bind fatty acids in the lipid bilayer.

In conclusion, the plasma membrane can be break down by applying enzymes and detergents.

Learn more about the cell membrane here:

brainly.com/question/1768729

#SPJ1

6 0
2 years ago
4 Which of the following is the importance of<br>mitosis?<br>manakah adalah​
Colt1911 [192]

Answer:

It plays an important part in the development of embryos, and it is important for the growth and development of our bodies as well. Mitosis produces new cells, and replaces cells that are old, lost or damaged. In mitosis a cell divides to form two identical daughter cells.

Explanation:

4 0
2 years ago
Which terrestrial biomes are both dependent upon periodic severe drought and/or fire?
Elis [28]

Grassland terrestrial biomes are both dependent upon periodic severe drought and/or fire.

Terrestrial biomes are ecosystems that can be found anywhere on earth that has a similar climate pattern and are not necessarily close to one another. Tropical forests are an illustration of a terrestrial ecosystem. Forests, grasslands, deserts, and tundra are some of the different biome types found in the terrestrial environment. There are eight main terrestrial biomes: temperate grasslands, temperate forests, boreal forests, Arctic tundra, and tropical rainforests, savannas, subtropical deserts, and chaparral.

The grassland biome consists of terrestrial areas where grasses predominate and there aren't many big trees or bushes. Temperate grasslands, tropical grasslands (sometimes called savannas), and steppe grasslands are the three main types of grasslands.

To know more about terrestrial biomes refer to:  brainly.com/question/9901718

#SPJ4

5 0
1 year ago
Many animals have beneficial traits that help them survive their environment. How do these traits develop in organisms?
Oksi-84 [34.3K]
They are used for them to adapt to the environment
7 0
2 years ago
Read 2 more answers
Other questions:
  • The tar in cigarette smoke contains chemicals that contribute to the development of
    15·1 answer
  • Most multicellular organisms are composed of cells with different shapes and sizes, and those cells perform different functions.
    6·1 answer
  • Science! Please help, Thanks if you do.
    10·1 answer
  • Earth's greenhouse effect is most directly related to the _____ cycle.
    13·2 answers
  • I need help asap I will give brainlist​
    11·2 answers
  • who usually gets chemotherapy, is there a specific group that it is more common in (children , the elderly , etc)​
    12·1 answer
  • Species in widely separated but similar biomes often appear to display similar characteristics 19 because of:_____.a. evolutiona
    11·1 answer
  • Another word for heterzygous is
    5·1 answer
  • In mice, black fur is dominant to white fur. Two mice with black fur are placed in the same cage and have several litters. Of al
    7·2 answers
  • What happens when an organism is eaten? A. All of its energy is returned to producers. B. All of its energy is gone when it dies
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!