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
Vinil7 [7]
3 years ago
12

The presence of a widow's peak (pointed hairline on forehead) is inherited in a dominant manner. If two people who are heterozyg

ous for widow's peak have children, what is the expected phenotypic ratio of their offspring
Biology
1 answer:
Kaylis [27]3 years ago
7 0

Answer:

widow's peak children = 3/4

no widow's peak children = 1/4

Explanation:

Widow's peak is a dominant trait. Assuming that the gene that controls the trait is represented by the allele A, the alternate form (no-widow's peak) would be a.

If two people who are heterozygous have children:

                              Aa   x   Aa

                        AA    Aa    Aa    aa

widow's peak = 3/4

no widow's peak = 1/4

<em>the expected phenotypic ratio of the offspring would be 3 to 1 widow's peak to no-widow's peak.</em>

You might be interested in
1. How could a water molecule be transferred and transformed through the water cycle over millions of years? Record your evidenc
KengaRu [80]

Answer:

the condensation of water vapor as it touches a colder surface.

Explanation:

7 0
2 years ago
What does it mean when scientists say that living organisms share a universal genetic code?
ser-zykov [4K]
They all have something in common
3 0
3 years ago
What number of President was Andrew Johnson
Bad White [126]

A quick Google search revealed that Andrew Johnson was the 17th president of the United States.

6 0
2 years ago
The principle of competitive exclusion states that A. two species cannot coexist in the same habitat. B. competition between two
larisa86 [58]

The principle of competitive exclusion states that two species cannot coexist in the same habitat.

<h3>What is competitive exclusion?</h3>

The competitive exclusion principle, often known as Gause's law, is a theory in ecology that holds that two species competing for the same scarce resource cannot coexist at constant population levels. One species will eventually outnumber all others if it has even a modest edge over the others. This results in the weaker competitor's extinction or an evolutionary or behavioral shift in favor of a different ecological niche. The adage "complete competitors cannot coexist" is a paraphrasing of this idea.

Although he never created it, Georgy Gause is traditionally credited with coming up with the competitive exclusion principle. The natural selection theory put forward by Charles Darwin already incorporates the concept.

The status of the principle has fluctuated during the course of its history between

To learn more about competitive exclusion from the given link:

brainly.com/question/2083056

#SPJ4

5 0
1 year ago
Which statement is true for chordate nerve cord?
amm1812
Chordates (phylum Chordata) are animals which are either vertebrates or one of several closely related invertebrates. They are united by having, for at least some period of their life cycle, a notochord, a HOLLOW DORSAL NERVE CORD
3 0
3 years ago
Other questions:
  • Imagine two North American ground cricket species that contact each other as the southern species moves northward during a perio
    8·1 answer
  • There are two tomato plantlets. One of them is kept in an oxygen chamber with a light source and another is kept in sunlight. Bo
    11·2 answers
  • he surface of the cells of some Pseudomonas species are covered in numerous threadlike structures. What is the likely reaction o
    11·1 answer
  • How does the Earth-<br> sun-moon system<br> affect life on Earth?
    13·1 answer
  • Arrange the rock layers from oldest to youngest. Re-examine the rock outcrops if you need too. Record the order in the student g
    7·2 answers
  • Select all that apply.
    5·1 answer
  • What do water molecules do when water is a solid?
    5·1 answer
  • Which part of the neuron below is indicated by the arrow, and what is its function?
    9·1 answer
  • Final question pls help me
    15·1 answer
  • How do the chromosomes of an offspring cell compare with the chromosomes of the parent cells?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!