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
lakkis [162]
3 years ago
6

Human hair color is a classic, if oversimplified, example of recessive epistasis. Red hair is caused by a recessive allele r. Ho

wever, if an individual has a dominant R allele, they may have either brown or blonde hair depending on whether they have a dominant B allele (which causes brown hair), or are homozygous for a recessive b allele (which causes blonde hair). The B and R loci are on located on different chromosomes. If a couple with genotypes Bb; Rr and bb; rr have children, what hair colors and in what proportions are expected among their children?

Biology
1 answer:
Vanyuwa [196]3 years ago
5 0

Answer:

1 Brown: 1 Blonde: 2 Red

Explanation:

According to the given information, the recessive allele "r" gives red color to hair but is epistatic to alleles B and b. Therefore, the genotype with two copies of the "r" allele would have red-colored hair. The genotypes with at least one copy of "B" and “R" alleles each would have brown hair while the "R" allele would give blond hair in presence of allele "b".

Therefore, a cross between BbRr and bbrr would produce progeny in following phenotype ratio= 1 Brown: 1 Blonde: 2 Red

You might be interested in
Recall Characteristics of Cells WARM-UP Choose the statements below that are true. Cells are the smallest unit of life. Cells ar
iogann1982 [59]

Answer:

1.Cells are smallest unit of life.

2.Cells are important to the structure and function of living beings.

3.All organisms are made up of multiple cells.

6 0
3 years ago
Read 2 more answers
Is a prokaryotic transcription terminating factor.
goblinko [34]

your answer is

A - Rho factor

3 0
2 years ago
Subject : Earth Science
garri49 [273]

1.

Identify the type of precipitation that is not one of the main categories.

snow

sleet

<em>drizzle</em> ✓

hail

  • It's a a mild fall of drops condensed hence , it's not a main category
  • The four main categories are snow ,rain ,sleet & hail

2.

Which device is used to measure rainfall?

measuring stick

rain gauge ✓

rain meter

rain stick

  • It calculates the precepated rain in a time period per unit area

3.

Which device is used to measure snow?

rain gauge

measuring stick ✓

measuring gauge

rain meter

  • A simple measuring stick can measure the thickness of snow
4 0
2 years ago
Outline how a hobby gardener can make and use microclimates.
Tresset [83]

Answer: know your common climate effects and how to limit them, i would recommend drawing a map of the area, identify spots of patchy dirt and figure out why, keep tabs on everything you see, pay attention to where everything grows best and everything grows less, try to compare and contrast why, pay attention to snow fall, make sure you’re char king for aspects, topography, exposure, shade, drainage and droughts as well.

Explanation: just did it

8 0
2 years ago
If i show a dominant trait do one of my parents have to show the same trait? explain?​
Mama L [17]
Well, not exactly like some parents have blue eyes and they have a dominant brown eyed child. This can happen because of the gynotype. The history of the child’s parents probably have some brown eyes which caused the child to have brown eyes. But usually the parent does express a dominant trait like the child.
7 0
3 years ago
Other questions:
  • oxygen is needed to produce energy in eukaryotic cells. which organelle would you think needs oxygen the mst
    14·1 answer
  • The native structure of hemoglobin (hb) comprises of two α and two β subunits, each of which carries a heme group. there appear
    8·2 answers
  • Which sentence describes a species whose numbers are increasing
    6·2 answers
  • What muscles is important in controlling breathing?
    6·2 answers
  • The shark is a fish while the dolphin is a mammal these are twp completely different types of animals but they have similar char
    5·1 answer
  • 20 points and I will mark you as brainliest
    11·1 answer
  • In the fourth century BC, Aristotle observed a phenomenon in which he saw a circular shadow on the Moon. He argued that Earth wa
    8·1 answer
  • If a strand of DNA has 10% G, what percent will be T?
    14·1 answer
  • What particle always has a mass of one atomic mass unit
    10·1 answer
  • Using this info how the two different species were formed
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!