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
Hunter-Best [27]
3 years ago
11

_adds genetic variation,which is essential for evolution

Biology
1 answer:
olga nikolaevna [1]3 years ago
4 0

Answer:

mutation

Explanation:

You might be interested in
Sickle cell anemia and albinism are both recessive traits in humans. The genes for these traits are located on different chromos
Liula [17]

Answer:

Given that, both parents are heterozygous. Now, the chances for one child to inherit one defective gene from each parent = ½*1/2 =¼.

Similarly, the probability of being affected by albinism =Probability of inheriting one defective gene from each parent = ½*½ = ¼

The probability of not being affected = 1- the probability of being affected = 1-1/4 = ¾.

Now, the chances of not being affected by both albinism and sickle cell anemia = ¾*3/4 = 9/16.

The probability of neither twins be affected = 9/16*9/16 =81/256.

Explanation:

6 0
3 years ago
Which statement best describes cell theory?
GarryVolchara [31]

Answer: B im pretty sure.

7 0
3 years ago
Read 2 more answers
The phylogenetic tree below shows the evolutionary relationships for several vertebrate groups. Use this diagram to answer the f
pshichka [43]

1. The group nearest the end or with the shortest stem of a phylogenetic tree has evolved most recently. In this case it is eutherians.

2. The group with the longest stem has been around the longest: fish

3. A direct common ancestor will share the same immediate line, like marsupials and eutherians. Fish and marsupials do not have a common direct ancestor.

7 0
3 years ago
Read 2 more answers
Suggest two reasons why a person aged 16–49 years might not be using contraception.
7nadin3 [17]

Answer and Explanation:

The people within this age range most likely want a baby for themselves/want more babies, or they don't feel like they should have to be limited to the amount of babies they want. Since it is their life and their bodies, they think it is up to them to decide how many to have and whether to have one or not.

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

8 0
3 years ago
Fats are digested in the
RSB [31]
I Know It has to be the stomach
5 0
4 years ago
Read 2 more answers
Other questions:
  • Select all that apply. Nucleic acids _____. are the largest of the four main biological macromolecules determine whether an orga
    6·2 answers
  • Three examples from everyday life of how the atmosphere supports and protects life.
    7·1 answer
  • In comparison with primary​ storage, hard drives are​ ________.
    12·1 answer
  • If you are caught outdoors in a thunderstorm, why should you not stand under a tree? 1. a tree is likely to be hit by lightning
    11·1 answer
  • PLS HELP ASAPPPPPPPPPPPPPPPP
    10·1 answer
  • How would signaling be affected if a mutation caused a g protein to replace gdp with gtp on its own without needing to be activa
    15·1 answer
  • What does groundwater naturally contain that allows it to dissolve limestone and form caverns?
    7·2 answers
  • Will give brainliest!
    6·1 answer
  • What is the basic unit of structure and function
    7·2 answers
  • Bonds between amino acid are what type of bond​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!