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
Serjik [45]
3 years ago
7

People who have Tay-Sachs disease cannot metabolize some lipids effectively. Tay-Sachs is a recessive disorder. A student used a

Punnet Square to determine the probability of offspring inheriting the disease. The results from a Punnet Square are 25% TT, 50% Tt, and 25% tt.
Which conclusion can be made regarding the phenotype of the parents based on these results?

The parents must be TT, Tt

The parents must be Tt, tt

The parents must be TT, tt

The parents must be Tt, Tt
Biology
1 answer:
Yuliya22 [10]3 years ago
6 0

Answer:

The parents must be Tt, Tt

Explanation:

Based on these results, we can conclude that each of the parents will have one dominant (T) and one recessive allele (t). We can prove this by drawing the Punnett square:

     T      t

T    TT   Tt

t     Tt     tt

We can see that the offspring will have the Tt genotype in two cases, the TT genotype in one case, and the tt genotype in one case, as well. Now we need to do some basic math. Two out of four is 50% (Tt - 50%), and one out of four is 25% (TT - 25%, tt - 25%).

This means that the parents must be Tt, Tt.

You might be interested in
Which is a step of the scientific method in environmental science ?
sertanlavr [38]

1. Making observations

2. Asking questions

3. Formulating a hypothesis

4. Conducting an experiment

5. Interpreting results and making conclusions


5 0
4 years ago
Read 2 more answers
Help as fast as you can brainliest for free
xz_007 [3.2K]

Answer:

glucose

Explanation:

6 0
3 years ago
Suppose a certain drug is tested in the laboratory and is found to create holes in both mitochondrial membranes. Scientists susp
Marat540 [252]

Answer:

The options to this question is incomplete, the correct options are:

A) the citric acid cycle.

B) oxidative phosphorylation.

C) glycolysis.

D) the citric acid cycle and oxidative phosphorylation

The answer is D

Explanation:

Cellular respiration is an important metabolic process carried out by the cells of living organisms including human cells. Aerobic cellular respiration involves three main stages viz: Glycolysis, Kreb's cycle, and Oxidative phosphorylation. These three processes occur to bring about the breakdown of glucose to synthesize ATP.

Glycolysis occurs in the cytoplasm while Kreb's cycle and Oxidative phosphorylation both occurs in the matrix and intracellular membrane of the Mitochondrion respectively. Hence, a drug that causes holes in both mitochondrial membranes will affect both Kreb's cycle and Oxidative phosphorylation.

3 0
3 years ago
Lactase is the enzyme needed to digest lactose, the sugar found in milk. Most mammals produce lactase when they are young but st
Oxana [17]

<u>Option A</u>) A nucleotide substitution in the coding region of the lactase gene that interferes with the interaction between lactase and lactose.

<h3>What mutation causes lactase persistance?</h3>

A mutation in a single nucleotide, in which thymine replaces cytosine, in the region that controls the expression of the lactase gene is what causes the lactase persistence trait.

This mutation first occurred in Hungry, and then it spread out to other regions of Europe, Africa, and Asia.

This mutation allowed humans to digest milk during adulthood.

According to this information, we can assume that the correct option is A). A nucleotide substitution in the coding region of the lactase gene that interferes with the interaction between lactase and lactose.

You can learn more about lactose persistance at

brainly.com/question/3465475

#SPJ1  

8 0
2 years ago
An 8-kg mass is in free fall. What is the velocity of the mass after 9 seconds
charle [14.2K]
It is 0.8m/s velocity
5 0
4 years ago
Other questions:
  • The onset of menstruation usually occurs in women who are: Select one: a. between 18 and 23 years of age. b. between 11 and 16 y
    12·2 answers
  • The nurse is caring for a patient admitted to the psychiatric unit with a diagnosis of schizophrenia. the patient has not bathed
    9·1 answer
  • Compare and contrast light microscopes, scanning electron microscopes, and transmission electron microscopes. Sort each statemen
    11·1 answer
  • Newton's second law of motion explains:
    11·2 answers
  • compare and contrast the functions of each of the following types of flask: filter, Erlenmeyer, volumetric
    13·1 answer
  • Even carnivores depend on producers because
    7·2 answers
  • Which of the following protein structures is exemplified by globular proteins?A) tertiaryB) secondaryC) primaryD) quaternaryE) a
    12·1 answer
  • Please help me!! Brainliest if correct!!!!! PLEASE!!!!!!!
    9·1 answer
  • How is the end product of mitosis different then the end product in meiosis
    15·1 answer
  • The ___ of the brain is most affected by alcohol abuse.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!