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
Elan Coil [88]
3 years ago
10

Can someone please help me with this!!

Biology
1 answer:
Margaret [11]3 years ago
7 0

Answer: Explain all the keys too How the human form was back then  For the skull need more Help tell me

Explanation:

You might be interested in
Variation occurs when chromosomes are shuffled in _____.
Illusion [34]

Answer:

fertilization

Explanation:

this often results in genetic variation as well :)

8 0
3 years ago
Various pieces of safety
schepotkina [342]

Answer: What are you asking??

5 0
2 years ago
Read 2 more answers
Q:- In dogs, the Mexican hairless phenotype never breeds true. When Mexican hairless are interbred the offspring are 2/3 hairles
drek231 [11]

Explanation:

The problem says that the hairless phenotype never breeds true. That means that it's not the result of a homozygous genotype (H₁H₁ or H₂H₂), so it is caused by the heterozygous genotype (H₁H₂).

The <u>expected </u>offspring from the cross between two Mexican hairless would be:

<h3>P                 H₁H₂  x  H₁H₂</h3><h3>F1    1/4 H₁H₁,  2/4 H₁H₂ and 1/4 H₂H₂.</h3>

And the <u>expected</u> phenotypic ratio 3:1. However, the observed offspring shows a 2:1 ratio. What's happening?

If the observed phenotypic ratio in the offspring of a monohybrid cross (a single gene with two alleles) is 2:1, we can suspect that one of the genotypes is lethal in homozygosis and therefore does not appear in the progeny (the puppies are born dead).

If we proposed that the H₂ allele is lethal in homozygosis, then:

  • The H₁H₁ genotype would cause normal puppies --> 1
  • The H₁H₂ genotype would cause hairless puppies --> 2
  • The H₂H₂ is lethal and causes the death of puppies --> 0

The phenotypic ratios change to 2:1, as observed in the experiment.

7 0
3 years ago
Which is the most common cause of erosion in deserts? A. wind B. ice C. plants D. liquid water
Anuta_ua [19.1K]
Wind is the most common cause of erosion in deserts.
6 0
2 years ago
Read 2 more answers
.
Artist 52 [7]
Genes and the environment
6 0
3 years ago
Read 2 more answers
Other questions:
  • What two similarities are shared by temperate grassland and savanna
    10·1 answer
  • A spacecraft orbits 327 kilometers above the surface of Earth. Assume that the spacecraft passes over Earth's North and South Po
    8·1 answer
  • crayfish, like the one seen here, lives in water. Bennie wondered how changes in temperature would affect the movement of crayfi
    6·1 answer
  • What determines the gender of baby crocodiles? A. the amount of rainfall B. the date of hatching C. the temperature of the nest
    5·1 answer
  • Which container will get bigger after osmosis
    14·2 answers
  • How does elevation effect climate
    13·1 answer
  • The diffusion of water through a semi-permeable membrane is called
    15·1 answer
  • Where would a frameshift mutation cause the most damage?
    8·1 answer
  • A seed plant is held in the group by its<br>​
    7·1 answer
  • 17. Give 3 main causes of habitat degradation.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!