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
vesna_86 [32]
4 years ago
7

The allele for a widow’s peak has complete dominance over the allele for a straight hairline (w). What is the probability of two

parents heterozygous for a widow’s peak (Ww) having an offspring with a widow’s peak? A) 75 percent B) 50 percent C) 0 percent D) 25 percent 
Biology
2 answers:
elena-14-01-66 [18.8K]4 years ago
6 0

Answer:

Option A, 75 percent

Explanation:

Given -

Allele for widow’s peak (W) is completely dominant over the allele for a straight hairline (w).

A cross is carried between two parents that are heterozygous for a widow’s peak

Thus, the  offspring produced by the cross between two parents with genotype "Ww" is

Ww * Ww

WW, Ww, Ww, ww

Except "ww" genotype all the remaining offspring have widow's peak.

Thus, the probability of two parents heterozygous for a widow’s peak (Ww) having an offspring with a widow’s peak is

\frac{3}{4} * 100\\0.75*100\\75%

Hence, option A is correct.

mote1985 [20]4 years ago
4 0
First you would make a cross for this. Which would result in WW, Ww, wW, and ww. Your answer would be 75 percent. You could do the same thing with using it similarly to the distributive property. 
You might be interested in
The graphs below show the changes in crab color at one beach.
vazorg [7]

Answer:

C. Both light tan and dark tan body color provided an advantage to the crabs on this beach, but not necessarily in other crab habitats.

Explanation:

The changes in the number of light tan and dark tan body color of crabs that occured can be described as a diversifying or disruptive selection.

This disruptive selection occurs when individuals with extreme traits on both ends of the spectrum become selected against individuals of ntermediate or medium traits.

In the case of the crab, their environment favors the selection of both extreme values as against those intermediate individuals, as both light tan and dark tan body color of the crabs gives them advantage over others in this particular environment. This may only be obtainable in this environment or similar beach environment with the same settings and conditions.

3 0
3 years ago
What type of lipid is estrogen
Ivahew [28]
The type of lipid that estrogen is testosterone 
8 0
3 years ago
Read 2 more answers
A match cut helps create a sense of continuity between shots by matching shot a and shot b in terms of action, graphic content,
Vitek1552 [10]
The clip that provides an example of a match cut is two cars one night. You are to compare between Death to the Tinman and Two Cars One Night. Between the two, only two cars and one night showed a sense of continuity between shots in terms of graphic content, eyelines and action of a match cut.
4 0
3 years ago
Which of these statements about nucleosomes are correct?
Olenka [21]
The answers are C and E
4 0
3 years ago
Organic agriculture is _______.Organic agriculture is _______.a food-growing practice that uses no synthetic fertilizers, insect
Luba_88 [7]

Answer: a food-growing practice that uses no synthetic fertilizers, insecticides, fungicides, or herbicides

Explanation:

Organic agriculture is a process of crops of economic importance. It is an integrated farming system that ensures the sustainability, enhances the fertility of the soil, and that is biological diversity.

It prohibits the use of synthetic pesticide or insecticides, fungicides, synthetic fertilizers, growth hormones, antibiotics, and genetically modified organisms for the growth of crops. It utilizes the fertilizers of organic origin, like manure, compost, bone meal and also supports the crop rotation. It supports the biological pest control and fostering of insect predators.  

3 0
3 years ago
Other questions:
  • Vesicles formed during phagocytosis or endocytosis often fuse with the membrane of which of the following organelles? Vesicles f
    13·1 answer
  • If the room you are in became low in oxygen, why would you suffocate?
    15·1 answer
  • A human somatic cell contains 46 chromosomes. How many chromosomes are found in a human egg cell?
    10·2 answers
  • Scientists can produce many plants in the lab by cloning; culturing a few plant cells in a test tube of chemical medium. Few cel
    15·1 answer
  • Key parts of the three major neurons
    15·1 answer
  • Which category of environmental worldview do you think would be most likely to lead to a sustainable future if it were widely ac
    15·1 answer
  • 5. Which of the following will most likely disrupt the stability of an ecosystem?
    5·1 answer
  • What happens when an atom loses an electron
    5·1 answer
  • (GIVING BRAINLIEST!)
    6·2 answers
  • All the carbon atoms that exist now are ____________? its on amplify science HELP NOW!!!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!