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
weqwewe [10]
3 years ago
13

Frank and Maria both had normal vision. After they married, they had two daughters and a son. Both daughters had normal vision a

nd never had children. Marco, the son, was color blind. He married Lauren, who had normal vision. Marco and Lauren had two children, Caleb and Molly. Caleb was not color blind, but Molly was. Color blindness is a sex-linked trait (carried on the X chromosome). The diagram below shows the family tree. Which statement about this family’s pedigree is correct? Marco carried the gene for color blindness, but Lauren did not. Lauren carried the gene for color blindness, but Marco did not. Marco and Lauren both carried genes for color blindness. Frank and Caleb both carried genes for color blindness.
Biology
2 answers:
Aleks04 [339]3 years ago
8 0

the answer is : Marco carry the gene for color blindness, but Lauren did not.

Color blindness is a usually a genetic (hereditary) condition (you are born with it).  Red/green and blue color blindness is usually passed down from your parents.  The gene which is responsible for the condition is carried on the X chromosome and  this is the reason why many more men are affected than women.as man has a 2 chromosomes X and Y, so both the chromosome can be transfered into the baby as the coming gene normally carry  the men's heridity. The effects of color vision deficiency can be mild, moderate or severe depending upon the defect.  If you have inherited color blindness your condition will stay the same throughout your life – it won’t get any better or worse. People with normal color vision have all three types of cone/pathway working correctly but color blindness occurs when one or more of the cone types are faulty. For example,  if the red cone is faulty you won’t be able to see colors containing red clearly.  Most people with color blindness can’t distinguish certain shades of red and green. That's why this comes into the gene once in the generation.

Rus_ich [418]3 years ago
7 0

the answer is A. on e2020

You might be interested in
Which hormone directs essentially all events of the absorptive state?
Marina86 [1]
The answer is insulin .......
8 0
3 years ago
Explain which of the two plants in the following scenario would most likely grow taller, and why.
xenn [34]

Answer:

The oak tree in the lawn will grow faster because it doesn't have to compete with the other oak trees to gain sunlight because it is out in the open. So therefore it will grow taller because it has access to more sunlight.

Explanation:

Hope this helped

5 0
3 years ago
Many cacti do not have leaves but rather have oversized stems.. what role of leaves is therefore taken on by the stems of cacti
Vinvika [58]
The answer is A. They produce food by photosynthesis.
The function of leaves is taken on by stems of such cacti.
5 0
3 years ago
Read 2 more answers
The function of thick mucus in the stomach is to Group of answer choices promote fat digestion. activate stomach enzymes. protec
Dafna11 [192]

Answer:

protect stomach cells from acid and enzymes.

Explanation:

This prevents peptic ulcers.

7 0
3 years ago
How do scientists use DNA to support evolution?
guapka [62]
DNA supports evolution  because all life on Earth carries DNA, and evolution happens only after DNA changes. These changes are called mutations and happen spontanoulsy from flawed DNA copying or from mutagens, such as X-rays or chemicals.
3 0
4 years ago
Read 2 more answers
Other questions:
  • What are the three common patterns of population distribution?
    13·1 answer
  • What is the role of neutrons?
    11·2 answers
  • Regions of fetal cartilage that ossify into bone tissue prior to birth are called
    8·2 answers
  • How does religion affect the Big Bang theory
    13·2 answers
  • What are the two types of organisms whose cells do not have a nucleus? A.Prokaryotes and euakaryotes B.Plants and animals C.Bact
    8·1 answer
  • The climate of Pennsylvania is generally _______________.
    11·2 answers
  • 1. Describe the structure of the heart, the pattern of blood flow through the valves and chambers of the heart, how the heart as
    10·1 answer
  • Sub Kingdom of penguin ​
    11·1 answer
  • Describe the function of. Endoplasmic reticulum
    9·1 answer
  • Help :(
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!