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
IrinaVladis [17]
3 years ago
13

Both members of a couple are heterozygous for a recessive mutation that causes tay-sachs disease (normal = a, mutant =

Biology
1 answer:
Andre45 [30]3 years ago
6 0
Key:

Tay-sachs disease - aa/Aa
Normal - AA

Since both parents are heterozygous

P1 = Aa x Aa
by doing punett square

Possible genotypes: AA, Aa, Aa, aa

75% chance that they will have affected children.
25% chance that they will have unaffected children if the disease is a recessive.


You might be interested in
Match The Animals With Their Characteristics.<br>​
kondor19780726 [428]

Answer:

spider with second option (spiders have an open circulatory system.)

earthworm with first option

starfish with forth option

Explanation:

3 0
2 years ago
The ph of the water in several lakes in norway and sweden had decreased to below 5.0 due to an increase in acid rain. What is mo
arsen [322]

Answer:

What will most likely happen in these lakes is that there will be a decline of several fish populations. The correct answer is A.

Explanation:

The options attached to the question are given below:

A. The decline of several fish populations

B. An increase in the number of fish.

C. An increase in the number of primary producers.

D. Increased predator- prey relationship.

The fishes, just like any other living organisms has ideal body temperature and pH at which they act best. The ideal pH for fish living in lake water is between 6 and 8. If the pH is reduced below this value then the water will become acidic and this will be toxic for the fish population living in the lakes. Therefore, those fish that can not cope will die and there will be a decrease in the fish populations.

7 0
3 years ago
How much of the Earth’s water is usable as a freshwater resource?
klemol [59]
<span>How much of the Earth’s water is usable as a freshwater resource?

3%</span>
4 0
3 years ago
Molecules that are present in the membranes of gram-negative bacteria and are the best known pamps are called ________.
miskamm [114]

Molecules that are present in the membranes of gram-negative bacteria and are the best-known pamps are called Bacterial lipopolysaccharides (LPSs).

Bacterial lipopolysaccharides (LPS) are the primary outer surface membrane elements present in almost all Gram-negative bacteria and it act as extremely strong stimulators of the innate or natural immunity in the diverse eukaryotic species ranging from insects to humans.

Eukaryotes are the organisms whose cells contain a nucleus and other membrane-bound organelles. eukaryote, any cell or organism that possesses a clearly defined nucleus. The first eukaryotic cells was evolved about 2 billion years ago. In this Cells with nuclei surrounded by a nuclear envelope with nuclear pores.

Learn more about lipopolysaccharides (LPSs) here

brainly.com/question/13049342

#SPJ4

4 0
1 year ago
How does the digestive system interact with the circulatory system?
FrozenT [24]
Answer:

The digestive system works very closely with the circulatory system to get the absorbed nutrients distributed through your body. ... While the digestive system collects and removes undigested solids, the excretory system filters compounds from the blood stream and collects them in urine.
5 0
3 years ago
Other questions:
  • The three basic regions of the cerebrum are the cerebral cortical gray matter
    9·1 answer
  • During autumn, the leaves of the plants turn red and fall, resulting in complete defoliation of the trees. Which mechanism is ta
    12·1 answer
  • A molecule of one atom of carbon and two atoms of oxygen would be written _____.
    12·2 answers
  • The diagram represents three sections of a cell membrane showing three different methods involved in the transport of various mo
    7·2 answers
  • When prokaryotic bacterial cells undergo cell division, the single circular chromosome replicates to form a second chromosome. T
    13·1 answer
  • If 5x+4y=58 and 3x + 7y = 67 find the value of ( x + y ) ​
    14·1 answer
  • According to bmi tables someone with a bmi of 29.5 would be categorized as
    10·1 answer
  • The approach, Ecosysyem-based uses ____ tools to manage resources.
    8·1 answer
  • Please help and fast and no guessing i will report if wrong.
    14·1 answer
  • In your own words, describe how DNA, mRNA, tRNA, ribosomes, and amino acids interact to build a protein.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!