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
vfiekz [6]
3 years ago
13

The expected ratio of phenotypes among the progeny of a test cross is 1:1:1:1. Out of 200 total resulting progeny, 48 occur in o

ne of the four phenotypic classes. Given this information, which of the following must also be true?
1) Since 48 is so close to the expected value, there is no need to calculate chi square before drawing a conclusion about the ratio.
2) At least one additional cell must also contain a count of 48.
3) The value of observed - expected for this cell = -2.
4) The progeny of this cross do not conform to a 1:1:1:1ratio.
Biology
1 answer:
Rzqust [24]3 years ago
3 0

Answer: The progeny of this cross do not conform to a 1:1:1:1 ratio

Explanation: This is because out of the 200 total resulting progeny, we must have 50 in each phenotype class to conform with the 1:1:1:1 which is not so as we have 48 in one of the phenotypic class already. Therefore, it did not conform to the ratio.

You might be interested in
Your friends are worried because their newborn sleeps 16 or 17 hours a day. what would you tell them?
just olya [345]
It may be perfectly healthy that their newborn is sleeping this long so unless they start displaying other strange symptoms that cause concern, there is no need to worry. They could suggest that they are concerned to the midwife if they feel anxious, to get a professional opinion.
8 0
3 years ago
List several species and several individual characteristics of dogs.
castortr0y [4]
Golden retrievers: loyal and playful family dogs
Pit bulls: bred for property guards and sadly dog fighting
German Shepard(K-9): good strength, sense of smell, speed, and stamina. Commonly used in the police force.
8 0
3 years ago
Smog damages everything but plants.<br> a. True<br> b. False
Maurinko [17]
The answer is b. False.

Smog is named for the mixture of smoke and fog. It is an air pollutant. It is able to affect human health and environment, as well. Smog affects plant by inhibiting photosynthesis which leads to reduced growth, reproduction, and survival of the plants. It can make them more susceptible to disease or to cause drying out.
3 0
3 years ago
Read 2 more answers
Which type of transport does not require energy but uses carrier proteins to help move substances across the cell membrane?
uranmaximum [27]
Passive Transport I belive...
4 0
3 years ago
Read 2 more answers
Compare cardiac and skeletal muscle
Norma-Jean [14]
Cardiac muscles are involuntary muscles that can be found along the heart.
Skeletal muscle are voluntary muscles that help us walk lift and run.
7 0
3 years ago
Other questions:
  • What process happens in the fluid filled space outside of the granum?
    11·1 answer
  • What changes can occur in an aquatic ecosystem as a result of nutrient loading?
    6·2 answers
  • Is gravel an autotroph?
    5·2 answers
  • How does sexual reproduction lead to variation of traits in a population?
    10·2 answers
  • Larger prokaryotes engulfed smaller prokaryotes and entered into
    11·1 answer
  • A(n) ________ pathogen is in a weakened state; it is still capable of stimulating an immune response but does not cause a diseas
    15·1 answer
  • ATP Molecules
    11·1 answer
  • What term can can be used to describe evolution by natural selection
    11·1 answer
  • 33. Which of the following energy sources emits carbon dioxide, creating pollution?
    13·1 answer
  • What describes gneiss?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!