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
dexar [7]
2 years ago
15

In humans, the allele for dimples (D) is dominant to the allele for no dimples (d). At another gene locus, the allele for broad

eyebrows (B) is dominant to the allele for slender eyebrows (b). These two allele pairs assort independently. A man who is heterozygous for both traits marries a woman who has no dimples and who is heterozygous at the gene locus controlling eyebrow width. Complete the sentences about this dihybrid cross with the correct terms.Genotype of the man is _______.
Genotype of the woman is _______.
Genotype of the gametes produced by the man is ________.
Genotype of the gametes produced by the woman is ________.
Probability that there first child will have dimples ________.
Probability that there first child will have dimples and slender eyebrows _________.
Biology
1 answer:
Inga [223]2 years ago
6 0

Answer:

<h2>1. DdBb</h2><h2>2. ddBb</h2><h2>3. DB, Db, dB and db.</h2><h2>4.  dB and db.</h2><h2>5 50% or 1/2</h2><h2>6. 1/8 </h2>

Explanation:

As given, Allele for dimples(D) is dominant over alleles for no dimples (d), so D  is dominant over d.

Allele for broad eyebrows (B) is dominant over allele for slender eyebrows (b), so B is dominant over b.

A man heterozygous for both traits ( DdBb) marries a women who has no dimple and heterozygous fro eyebrow (ddBb)

So cross is =  DdBb × ddBb

1). Genotype of the man is DdBb.

2). Genotype of the woman is ddBb.

3). Genotype of the gametes produced by the man are DB, Db, dB and db.

4). Genotype of the gametes produced by the woman are dB and db.

5). Probability that their first child will have dimples 50% or 1/2

6). Probability that there first child will have both dimples as well as slender eyebrows 1/8

You might be interested in
Which animal undergoes external fertilization?
zhannawk [14.2K]

Answer:

Among vertebrates, external fertilization is most common in amphibians and fish. Invertebrates utilizing external fertilization are mostly benthic, sessile, or both, including animals such as coral, sea anemones, and tube-dwelling polychaetes. Benthic marine plants also use external fertilization to reproduce.

= Fish

Explanation:

7 0
2 years ago
Rhdndndndndnnddndndnndnx
BlackZzzverrR [31]

what do this mean do you want free points

5 0
2 years ago
Read 2 more answers
What is Serena is mixing a material into a beaker filled with a liquid. She notices that the material seems to disappear into th
malfutka [58]
Solubility is correct.
7 0
2 years ago
Which of the following correctly describes how molecules move during diffusion? (select all that apply)
BigorU [14]
<span>i think it is a.Molecules move against their concentration gradient.  hope it helps

</span>
5 0
3 years ago
_____ are cells that identify, pursue, and attack harmful invaders in the body.
Paul [167]
White blood cells, also know as macrophages or phagocytes
4 0
3 years ago
Other questions:
  • In a solution a substance that is dissolved is called ----
    14·2 answers
  • What type of transport requires energy to move sodium ions from a low concentration across the intestinal wall into a higher con
    15·2 answers
  • Jason is blindfolded and cannot verbally identify objects in his left hand, which suggest that he has had a dyslexic episode a l
    12·1 answer
  • PLZ I NEED HELP PLZ!!!!
    14·1 answer
  • Which is the best description of photophosphorylation? he absorption of light energy by chlorophyll the conversion of light ener
    9·2 answers
  • What are some of the key life support systems built into a space suit
    9·1 answer
  • Which organisms have the most amount of energy in the food web
    8·2 answers
  • a scientist finds an organism that has a single cell without a nucleus this organism was found in pond water in which kingdom do
    12·1 answer
  • What is a colony forming unit and how is it used to infer microbial numbers in a sample?.
    5·1 answer
  • In what year did Oxford scientist Robert Brown discover the motion of small particles?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!