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
Veronika [31]
3 years ago
13

A researcher is creating pedigrees for a trait he suspects to be dominant in humans. what are some of the likely features of his

pedigrees for families with this trait?
Biology
2 answers:
xz_007 [3.2K]3 years ago
7 0
A feature of a pedigree that indicate that a certain trait is a dominant trait is that one of the parents always have to have the trait.

There are, however, autosomal dominance and X-linked dominance.

For an autosomal dominant trait: 
- Appears equally frequent in both sexes.
- Both sexes transmit the trait.
- Present in all generations.
- When one parent has the trait and the other doesn't, approximately half of the offspring will present the trait.

For a X-linked dominant trait: 
- Both male and females can present the trait, but more females usually present it.
- Sons with the trait always have a mother that presents the trait as well.
- Daughters with the trait always have either a mother or father that presents the trait, or both.
- Fathers with the trait always have daughters with the same trait.
quester [9]3 years ago
5 0

Answer:  

The trait will be shown more frequently in the family pedigree. Rest of the characteristics will depend on whether it is an autosomal or X linked dominant trait.  

Explanation:  

A pedigree analysis is used to study inheritance of genes in a family. It is used for many purposes like finding out the genetic source of a disorder in family or predicting the trait outcome for future progeny based on status of family members. If it's a dominant trait, it would be expressed even with a single copy so such a pedigree shows the trait more frequently.

Further Explanation:

Autosomal dominant trait:  

  • An autosomal dominant trait will express itself in both the sexes.  
  • Both the sexes will pass on the trait.  
  • Overall pedigree will have at least one affected member in every generation because it is dominant and sex independent.  
  • If around half of the children are affected and one parent is unaffected that means other parent is affected and heterozygous for the trait .  

X-linked dominant trait:

  • A X linked dominant trait will be more frequently presented by a female.  
  • A son with the trait will always have a mother with the trait because he inherited X chromosome from the mother.  
  • Daughter with the trait will have either one or both the parents affected by the trait.  
  • Fathers who have this trait will always have daughters with this trait becuase they will pass surely one X chromosome to the daughter.

Learn More:  

about pedigree: brainly.com/question/2952835 ( answer by JcAlmighty )

about different type of traits:  brainly.com/question/7135379?section=similar  ( answer by Palmss24 )

Keywords: pedigree, autosomal dominant, X-linked dominant, trait

You might be interested in
There is a new trend to focus on dopamine receptor sensitivity rather than on dopamine itself because
Alex

Answer:

There is no scientific evidence to prove that people with schizophrenia ingest dopamine capable of accumulating excess in the body.

Explanation:

Although you did not specify that your question is associated with the origin of schizophrenia in people, we can see that this is the main topic of your question, due to its context. This is because scientists have been striving to find the origin of this disease, in order to be able to combat it in the early stages. Although many scientists believe that the origin of this disease is associated with excessive intake of dopamine, there is not strong enough scientific evidence to show that this is true. Because of this lack of evidence, filmmakers have focused on associating the origin of the disease with the sensitivity of the dopamine receptor and not with the dopain itself.

5 0
3 years ago
Humans evolved in the Eocene period.
HACTEHA [7]

Answer:

Humans evolved in the Eocene period. Humans have impacted the rainforests through mining, agriculture, and construction. True. The Earth's history has had a significant effect on the characteristics of its organisms and biomes.

Explanation:

3 0
2 years ago
Two of the structures that the nucleus depends on
hodyreva [135]

Answer:

DNA and its membrane

Explanation:

3 0
3 years ago
Read 2 more answers
Describe a service that a ecosystem provides in your community that should be protected to ensure that the quality of the servic
ddd [48]
In our community the ecosystem provides fresh drinking water via pipes called citywater or ground water. It should be protected well, because it is our cities only source of clean water, ''purified''.
8 0
3 years ago
The biosphere is made of different kinds of matter. Which substance is an
Sedaia [141]

Salt is the Inorganic matter.

Option D.

<h3><u>Explanation:</u></h3>

Organic matters are defined as those compounds of carbon expect the carbonates, bicarbonates, cyanides etc. These compounds were primarily thought to be produced only from the living organisms and were unable to be produced in laboratory. But later they were being produced in laboratory too.

Inorganic compounds are all the compounds except the organic ones.

Here, in the question, we see the compounds -

Protein - it's the polymer of amino acids which contain carbon, and isn't carbonates or bicarbonates, cyanides etc.

Carbohydrates and sugars are also similar to proteins which contain carbon and isn't the exceptions. So they are also the organic compounds.

But salt, commonly table salt is sodium chloride which doesn't contain carbon, so is Inorganic.

7 0
3 years ago
Other questions:
  • A client visits an orthopedic specialist because of pain beginning in the low back and radiating behind the right thigh and down
    8·1 answer
  • What are the main ideas of the cell theory?
    11·1 answer
  • How long is a term for a US senator?
    15·2 answers
  • In dna replication, the helix he opened and unwound by the enzyme dna
    12·1 answer
  • Which describes conservation of resources?
    5·1 answer
  • E=mc2 <br> Can u plz solve for c
    13·1 answer
  • Is the process of bringing nutrients into the bloodstream while<br> is getting rid of waste *
    11·2 answers
  • Why do liver cells divide slowly?
    12·1 answer
  • The Central Dogma states that cellular information is transmitted from _____ to mRNA to proteins.
    12·2 answers
  • Why Should We Add Crickets In Our School Lunches? <br> Introduction
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!