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
mr Goodwill [35]
3 years ago
5

If someone with auburn hair has children with someone with red hair (but whose mother had black hair ) what are the genotype and

phenotype probabilities for their children ?

Biology
1 answer:
tensa zangetsu [6.8K]3 years ago
6 0

The phenotype is - 75 % red and 25 %brown.

The genotype is hRhR - 25%

hBkhR - 50%

hBrhBk - 25%.

<h3><u>Explanation:</u></h3>

The cross given here is a simple dominant - recessive relationship between the three types of alleles of hair colour. The genes of this characteristics are present in autosomes, so will be segregated equally among all the sexes of the offsprings.

Now the genotype of auburn and red with black mother is given. So during gametogenesis, the gametes from the parents will be

Father - hBr and hR

Mother - hBk and hR

So, the probable combinations are hBrhBk, hBrhR and hBkhR.

The frequency of the combinations are 25%, 25% and 50% respectively.

The phenotypic ratio will be red : brown as 3:1.

You might be interested in
When two parents join to form a new individual-
Zolol [24]

Answer:

"B"

Explanation:

It will have both traits from both parents.

7 0
2 years ago
Transformed bacteria are plated on LB plus ampicillin to determine which cells were successfully transformed. Which part of the
mina [271]

Answer:

The gene that encodes ampicillin resistance.

Explanation:

The plasmid would contain the ampicillin resistance gene which gets expressed in the presence of ampicillin.

5 0
2 years ago
The heart is the most
svetoff [14.1K]

Answer:

The main function of the circulatory (or cardiovascular) system is to deliver oxygen to the body tissues, whilst simultaneously removing carbon dioxide produced by metabolism.

7 0
2 years ago
Adenine in DNA is complementary to
vesna_86 [32]

Answer:

DNA is also called deoxyribonucleic acid which is made up of two chains which wind around each other to form a double helix model. The 2 DNA strands are also called polynucleotides and they are made up of monomeric units known as nucleotides. These nucleotides are made up of one of four nitrogen-containing nucleobases: cytosine, guanine, adenine and thymine, a phosphate group, and sugar known as deoxyribose.  

Nitrogen bases present on the two separate polynucleotides strands are bound together with the help of base pairing (such as adenine with Thymine) and with hydrogen bonds to form double-stranded DNA.

So, adenine in DNA is complementary to thymine.

8 0
2 years ago
Which best describes the ovary? It produces progesterone. It does not influence breast development. It produces testosterone. It
geniusboy [140]
<span>It produces progesterone.The ovaries produce the female hormones estrogen and progesterone, in addition to a minute quantity of testosterone. Each ovary has thousands of follicles competent of generating eggs for fertilization. The brain cause the ovaries to develop a single mature egg cell for potential fertilization.</span>
6 0
3 years ago
Read 2 more answers
Other questions:
  • Enzyme which seals dna fragments together
    8·1 answer
  • Identify the organs each body cavity contains
    7·1 answer
  • A child that is not stimulated with a normal environment is likely to show ____.​
    7·1 answer
  • Which of the following was NOT an event leading up to the American Revolution?
    12·2 answers
  • Mention two similarities between haemolysis and plasmolysis
    10·2 answers
  • I need help because i dont really know how to do this
    11·2 answers
  • A boxer has been jumping rope for an hour. His leg muscles are burning and he feels weak. Which of the following most likely exp
    11·2 answers
  • The function of grease oil in hanging drop experiment in crystallization
    5·1 answer
  • What must a student do to obtain a volume of 12.5 milliliters of liquid in the graduated cylinder shown in the diagram below?
    15·1 answer
  • What is a group of organisms at any particular level in a classification system called?.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!