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
stira [4]
3 years ago
11

In humans having a wide jaw (W) is completely dominant to having a narrow jaw (w). Having large teeth (L) is completely dominant

to having small teeth (t). A man with a wide jaw whose mother has a narrow jaw is heterozygous for teeth size. He marries a woman who has a narrow jaw and is heterozygous for large teeth. What are the two parents genotypes?
Biology
1 answer:
Orlov [11]3 years ago
5 0

Answer: The man's genotype is WwLt while the woman's genotype is wwLt.

Explanation: From the information given above, W is the allele for wide jaw, w is the allele for narrow jaw, W is completely dominant to w, L is the allele for large teeth while t is the allele for small teeth.

The man has wide jaw but his mother has a narrow jaw, since narrow jaw is recessive the man must have inherited one recessive allele for narrow jaw from his mother who has two recessive alleles for narrow jaw. Therefore since the man has wide jaw, he must be heterozygous for wide jaw (having one dominant allele for wide jaw and one recessive allele for narrow jaw), his genotype for wide jaw is therefore Ww. The man is heterozygous for teeth size, this means that he has one dominant allele for large teeth and one recessive allele for small teeth. His genotype for teeth size is Lt. Therefore the man's genotype is WwLt.

The woman has a narrow jaw, this means that she has two recessive alleles for narrow jaw (ww) and she is heterozygous for large teeth size, this means that she has one dominant allele for large teeth and one recessive allele for small teeth (Lt). Therefore, the woman's genotype is wwLt.

You might be interested in
What are our lungs made out of?
DanielleElmas [232]

Answer:

The lungs are a pair of spongy, air-filled organs located on either side of the chest (thorax). The trachea (windpipe) conducts inhaled air into the lungs through its tubular branches, called bronchi. The bronchi then divide into smaller and smaller branches (bronchioles), finally becoming microscopies

Explanation:

3 0
2 years ago
The movement of water across a membrane moving with the concentration gradient is called
Likurg_2 [28]

Answer: B

Explanation: Osmosis is the movement of water through a semipermeable membrane according to the concentration gradient of water across the membrane, which is inversely proportional to the concentration of solutes.

7 0
2 years ago
Read 2 more answers
Write a paragraph summary about the differences between amphibians and mammals (humans).
Marizza181 [45]

Answer:  Mammals give birth to live young, whereas the birth of amphibians takes place externally. Mammals are warm-blooded, while amphibians are cold-blooded. Mammals can live in all habitats, unlike amphibians, and have muted colors. Some amphibians can regenerate their limbs.

3 0
3 years ago
The criteria used to determine whether something is alive includes movement, growth and
quester [9]
<span>presence of protoplasm, self built organisms, self repair, reproduction and various life process like metabolism, nutrition, respiration, exchange of material, transportation, excretion and irritability.</span>
5 0
3 years ago
Read 2 more answers
According to the theory of plate tectonics, which is one feature that plates carry?
Phoenix [80]

Answer:

seafloor

Explanation:

  • A plate, often described as a lithospheric plate, with seafloor, continents and mountains on top of it.
  • The earth is divided into three layers based on their chemical composition. Undoubtedly, there is a component called the lithosphere.
  • The lithosphere consists of a crust and a portion of a solid upper mantle.
  • Below the lithosphere is the asthenosphere.
  • There are two types of crusts: the continental crust and the oceanic crust.
  • Where there is a seabed there is a sea crust.
  • Mountains are also found in oceanic and continental crusts.
  • The intercontinental layer corresponds to the continents.
8 0
3 years ago
Read 2 more answers
Other questions:
  • Question 1
    15·1 answer
  • Select the correct answer.
    15·1 answer
  • 1.
    9·2 answers
  • A sample of basalt has smaller crystals than a sample of granite. What is the most likely reason for this? The basalt
    12·1 answer
  • In facilitated diffusion, do molecules move down their concentration gradient?
    15·1 answer
  • Can you differentiate the various dysrhythmias? for each disorder, drag and drop the statements that apply to the disorder to th
    15·1 answer
  • Although choanoflagellates are fundamentally unicellular organisms, they possess genes that code for cadherins and integrins. Wh
    6·2 answers
  • 8.
    9·1 answer
  • What are some environmental indicators?
    12·1 answer
  • 24. Approximately how wide is each time zone?<br> a. 15"<br> b. 30°<br> e. 60°<br> d.180°
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!