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
zmey [24]
3 years ago
8

The "calico" pattern of coat coloration in female cats is a result of:__________

Biology
1 answer:
elixir [45]3 years ago
3 0

Answer:

b. x chromosome inactivation

Explanation:

As you know, female cats have an x chromosome inherited from their mother and an x chromosome inherited from their father. After these two chromosomes are inherited and determine the sex of the cat, one of them will be disabled at some point in fetal development. Inside the X chromosome is the gene that determines the coat color of cats, when one of the two x chromosomes is deactivated, the other x chromosome will have all of its cells activated. In this case, if the activated chromosome is the one that has genes for the "cheetah" pattern of the coat color, all the descendants of this female cat also have the same coat.

You might be interested in
why is the ventricle a stronger muscle than the atria? When blood leaves the ventricle and goes to the body, why isn't the blood
Charra [1.4K]
First answer is , as the work of ventricle is to push blood to he whole body , so it has to be strong or it can not pump blood to head to the toe !

as in frog (an amphibian ) it has only three chambers as two artia and one ventricle, so the oxygenated blood from left artia and deoxygenated blood from right , combines and thus partial oxygenated blood is circulated !
3 0
3 years ago
What surface features does Comet Hale-Bopp have? Unless there is no surface features.
antiseptic1488 [7]

Answer:

  • The bright head of the comet Hale-Bopp, called the comma, is shown near the Sun. The combo is made up of dust and gas, concealing a solid comet nucleus made of rock, dust, and ice.
  • The solid nucleus or core of the hale bopp comet consists mainly of ice and dust coated with black matter, and ice formed mainly of frozen water but possibly other cold substances, such as ammonia, carbon dioxide, carbon monoxide and methane.

Hope it helps!

4 0
3 years ago
Let p = purple flowers and p = white, and t = tall plants and t = dwarf. if the uppercase letters represent the dominant alleles
sesenic [268]

If the uppercase letters represent the dominant alleles, purple flowers and tall are the phenotype of a plant with the genotype Pptt.

A gene can exist in different forms across organisms. These different forms are known as alleles.

The subsequent combination of alleles that an individual possesses for a specific gene is their genotype.  

Examples of  genotype include:

  • Hair colour
  • Height
  • Shoe size
  • Eye colour

The sum of an organism’s observable characteristics is their phenotype. A key difference between phenotype and genotype is that, whilst genotype is inherited from an organism’s parents, the phenotype is not.

Whilst a phenotype is influenced the genotype, genotype does not equal phenotype. The phenotype is influenced by the genotype and factors including:

  • Epigenetic modifications
  • Environmental and lifestyle factors

Observing the phenotype is simple – we take a look at an organism’s outward features and characteristics, and form conclusions about them. Observing the genotype, however, is a little more complex.

Genotyping is the process by which differences in the genotype of an individual are analyzed using biological assays. The data obtained can then be compared against either a second individual’s sequence, or a database of sequences.

Learn more about genotype here : brainly.com/question/22117

#SPJ4

6 0
1 year ago
Internal and external fertilization both _____. _____ Select one: a. produce single-celled zygotes b. occur only among invertebr
Natali [406]

Answer:

Option-A

Explanation:

Fertilization refers to the fusion of the male and female gamete to form the zygote.

When the fertilization occurs inside the organism through insemination then it is known as the internal fertilization and when it occurs outside the organism like observed in the amphibians when male and female gametes fuse in the water is known as external fertilization.

Both are different type of fertilization but share a similarity that is the formation of a single cell called the zygote which grows into the embryo by the mitotic division. The embryo later develops into the organism.

Thus, Option-A is correct.

6 0
3 years ago
Please help me with this it’s so hard
Deffense [45]

Answer:

1: Frond's

2:Pistil

3:Gametes and spore's

4: photosynthesis

5: Spore

6:Stigma or ovule

7:Ovary

Hope this helps!

5 0
2 years ago
Other questions:
  • A life cycle can be completed in less than a day by<br> 1. worms<br> 2. mollusks<br> 3. parameclums
    15·1 answer
  • Is the liquid in the beaker classified as a solution
    8·1 answer
  • Examples of matter and not
    10·1 answer
  • Oceanic crust is best described as
    13·2 answers
  • A point mutation occurs in a sex cell of an adult rabbit. The gene affected by
    5·1 answer
  • A red flower (RR) and a red flower (Rr) have the same
    9·1 answer
  • Science is not a process, but just a body of facts that<br> accumulates overtime.<br> TRUE<br> FALSE
    8·1 answer
  • How is an atom different from an element?
    10·2 answers
  • Penguin wings and swallow wings are _____ structures.
    10·1 answer
  • If anyone don't know where is leaderboard check the attachment​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!