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
11Alexandr11 [23.1K]
3 years ago
8

The offspring between 2 black mice show the ratio of 3 black mice to 1 white mouse...

Biology
1 answer:
Mkey [24]3 years ago
8 0

Answer: A) Black trait is dominant

B) The genotypes of the parents must be Bb

Explanation: Let B represent the allele for black colour and b represent the allele for white colour. If the offspring between 2 black mice show the ratio of 3 black mice to 1 white mouse, it then means that the two parents are heterozygous for black colour, that is each of them have one allele for black colour (B) and one allele for white colour (b). They both have a genotype of Bb.

Bb x Bb = BB, Bb, Bb, and bb.

This means 1BB : 2Bb : 1bb

BB is black, Bb is black while bb is white which gives a ratio of 3 black mice to one white mouse. For Bb to manifest as black, it means that B is dominant to b.

You might be interested in
What is the answer for this question please help
Nezavi [6.7K]
The plant belongs to the group Angiosperm. Vascular plants with seeds could be cycads, Gingko, conifers, or angiosperms. Among those groups, only angiosperms have flowers.
The plant they found have colored, scented flowers which suggests that it could be pollinated by insects or birds. Colored flowers attract birds and insects. Color serves as a guiding mark. Talking of scent, it does not attract bird, but attracts insects. It also serves as the guiding mark.
7 0
4 years ago
Why does ice float on water?
laila [671]
C.The density of ice is less than the density of water.
3 0
4 years ago
What is one function of the smooth endoplasmic reticulum
Vera_Pavlovna [14]
It helps in metabolic processes like synthesis of lipid, phospholipids and steroids.
5 0
3 years ago
Cual es el proceso molecular de las neuronas?
Rasek [7]

Answer:

un tipo de célula altamente especializada cuya principal característica es su incapacidad para reproducirse. Esto significa que el ser humano nace con una cantidad determinada de neuronas, las que, si bien no pueden duplicarse, han demostrado ser unidades muy plásticas y capaces de generar reacciones en situaciones bastante desfavorables.

Explanation:

5 0
3 years ago
DNA can be found it what organelles
AVprozaik [17]

You may be referring to the nucleus. The nucleus controls the cell, and it contains chromosomes (DNA) genetic makeup. Hope I could help|!

6 0
3 years ago
Other questions:
  • The rungs or steps of DNA are made up of ____ which are attached to the sides or railings of DNA, which are made up of ___.
    11·1 answer
  • If a mutation creates a new fur color in a wolf population, what factor might determine whether the frequency of the new trait w
    9·2 answers
  • What is biology means
    12·2 answers
  • True or False: Good graphs should have a descriptive title that includes both variables.
    9·1 answer
  • What type of rna acts like a delivery truck, delivers amino acids to the ribosome for protein synthesis, and then leaves empty a
    6·2 answers
  • Which statement is true about smaller cells A less active metabollically B having smaller nucleus and organelles C with larger n
    14·1 answer
  • Chromosome pairs separate in this phase of meiosis
    9·1 answer
  • Please help would mean a lot tried looking up the answer but I have to pay to get answers.
    15·1 answer
  • Which structure of a flower releases pollen? anther
    10·2 answers
  • What is the term for the leaf openings responsible for gaseous exchange?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!