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
lara31 [8.8K]
2 years ago
10

A woman heterozygous for polydactyly (extra fingers and toes), a dominant trait, is married to a normal man. What is the probabi

lity of producing an offspring that has extra fingers or toes?

Biology
1 answer:
Feliz [49]2 years ago
5 0

Answer:

The correct answer is -50%

Explanation:

Polydactyly is a dominant trait where a person gets an extra finger or toes the dominant allele is represented by P = allele for polydactyly, and the recessive allele represented by p = normal allele

So, the heterozygous woman will be - Pp & the normal man will be - pp.  The presence of one allele of polydactyly will be able to show its effect as it is dominant.

Cross between heterozygous woman & normal man:

Gametes:

   P                              p

p Pp (Show polydactyly) pp (Normal phenotype)

p Pp (Show polydactyly) pp (Normal phenotype)

From the above Punnett square, the probability of an offspring that has extra fingers or toes will be 1/2 or 50%.

You might be interested in
Question 18
Natasha2012 [34]

Answer:

I believe the answer would be insulated container.

6 0
3 years ago
Read 2 more answers
Last week I was assigned a thematic. We have groups of three but the people I was assigned with haven't been in school for days.
damaskus [11]

Hello,

Please find below a short summary on the subject you have been assigned. This will help you in completing your project and also give you an overview on the current research on this subject.

Food additives are chemical substances added to food in order to either maintain or improve its physical characteristics such as taste, texture, appearance and even freshness.

The long term effects that these substances have on the human body are still largely unstudied. According to the hypothesis called "chemical obesogen", these synthetic compounds are contributing factors to the global obesity epidemic.

Although evidence-based scientific research is still lacking, the support for this hypothesis is growing as many of these additives have been found to disturb the body's endocrine functions.

Furthermore, artificial preservatives used today may increase the risk of inflammatory bowel disease. This has been shown by a study on mice in which the food additives known as emulsifiers (carboxymethylcellulose and polysorbate-80) have been shown to affect the animal's health.

Due to these chemicals, the mice not only became obese but also developed metabolic problems such as glucose intolerance.  It seems that these chemicals affect the gut bacteria population in a negative way, as mice lacking gut bacteria did not become ill.

The mice study was followed by another study in which the human simulated through a series of flasks. Under the influence of the emulsifiers arboxymethylcellulose (E566 on EU labels) and polysorbate-80 (E433), the levels of bacterial protein called flagellin increased. This protein is known to cause inflammation at high concentrations. The next step in the study will be the first human trials.

Due to the long road our food takes from the farm to our table more extensive research is required. There are thousands of compounds that change the biochemical properties of the plants and animals that constitute our diet. The effects of the degradation and accumulation of these compounds are still unknown and thus many more studies and approaches are required in order to insure healthy food and stop the current obesity epidemic. Everything that is added to our food should be carefully analyzed.

4 0
3 years ago
What causes the jet stream?
Tanya [424]
Even though the wind tries to flow from high pressure to low pressure, the turning of the Earth causes the air flow to turn to the right so the jet stream flows around the air masses, rather than directly from one to the other.hope this helped I just learned this two weeks ago
6 0
3 years ago
What characteristic of are found in veins but not arteries?
Paul [167]

Answer: Possession of Valves

Explanation: Veins possess valves which ensures that blood flows in only one direction. Valves helps blood to flow back to the heart against gravitational force.

Arteries don't have valves because the pressure originating from the heart is capable of causing the blood to flow in one direction.

7 0
3 years ago
When a dairy farmer chooses to breed the cows that give the most milk in the herd, the farmers are following the principle of
Vinil7 [7]

Well, i took the test and i put artificial selection and got it right. The definition of artificial selection is "The breeding of plants and animals to produce desirable traits" So the answer is A

3 0
3 years ago
Read 2 more answers
Other questions:
  • A student conducted a scientific investigation on the magnetic properties of iron. She used a magnet to try to pick up iron nail
    15·1 answer
  • Fluid contained inside the lymphatic vessels is referred to as ____________ and is similar to ____________ in consistency and ap
    7·1 answer
  • Separation caused by geographic division is called ? A) allopatric speciation B) genetic speciation c) parapatric speciation D)
    12·1 answer
  • _____ is the correct cpt code for a cholecystectomy using a right subcostal incision for exploration of common duct, with choled
    13·1 answer
  • Which category is the dependent variable?
    11·2 answers
  • True or false? In DNA fingerprinting, an absent or faulty gene is replaced by a normal, working gene
    13·2 answers
  • What are the three functions of cell division?
    14·1 answer
  • If you had a blue blood when it comes out of your body what would that be
    15·1 answer
  • Why is it possible that two ecosystems with identical conditions of temperature and precipitation, could support different plant
    15·1 answer
  • The hypothalamus regulates the ________.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!