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
Zina [86]
3 years ago
12

4) All the offspring of a cross between a black-eyed Mendelian and an orange-eyed Mendelian have black eyes. What is the expecte

d phenotypic ratio of a cross between two orange-eyed Mendelians?
Biology
1 answer:
Keith_Richards [23]3 years ago
7 0

Answer:

0 : 1 ( black eyed : orange eyed )

Explanation:

When black eyed-Mendelian is crossed with orange-eyed Mendelian, the entire progeny has black eyes. This means that the allele for Black color is dominant to the color for orange color and it masks its effect completely in the next progeny.

BB X bb = Bb ( All black )

So orange Mendelian is a recessive trait and will have genotype bb. When two orange eyed Mendelians are crossed:

bb X bb = bb ( All orange since there is no B allele )

Hence, the phenotypic ratio will be = 0 : 1 ( black eyed : orange eyed )

You might be interested in
How often two genes cross-over can tell us how far apart the genes are from each other. this is called recombinant frequency (rf
Roman55 [17]

Answer:

By finding recombination frequencies for many gene pairs, we can make linkage maps that show the order and relative distances of the genes on the chromosome ..

6 0
2 years ago
The epithelial cells in the skin of an animal have 24 chromosomes. How many chromosomes are present in the gametes of this anima
mrs_skeptik [129]

Answer:

There will be 12 chromosomes

Explanation:

We have given that The epithelial cells in the skin of an animal have 24 chromosomes

We have to find the number of chromosomes present in the gametes of this animal

We know that number of chromosomes present in the gametes is given by

\frac{number\ of\ chromosmes\ present\ in\ skin}{2}

So number of chromosomes in gametes =\frac{24}{2}=12chromosomes

4 0
3 years ago
Read 2 more answers
Human cells obtain energy from a reaction called cellular respiration. balance the skeletal equation for cellular respiration. c
Softa [21]
<span>C6H12O6 + O2 -> CO2 + H2O + energy, otherwise expressed as glucose plus oxygen converted into carbon dioxide plus water plus energy. It includes glycolysis, the Krebs Cycle, and oxidative phosphorylation to properly balance. The finished equation should look like this: C6H12O6 + 6O2 -> 6CO2 + 6H2O + energy</span>
5 0
3 years ago
A eukaryote has cells that do not contain a nucleus, whereas a prokaryote has cells that have a nucleus.
kap26 [50]

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

                  Hello!

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

❖ This statement is false.

PROKARYOTE cells are cells that don't contain a nucleus, whereas a EUKARYOTE has cells that have a nucleus.

~ ʜᴏᴘᴇ ᴛʜɪꜱ ʜᴇʟᴘꜱ! :) ♡

~ ᴄʟᴏᴜᴛᴀɴꜱᴡᴇʀꜱ

3 0
3 years ago
In the animal cell, which of the labeled organelles is the rough endoplasmic reticulum?
Fittoniya [83]

Answer:

5 is the rough endoplasmic

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • What does the nurse tell a pregnant patient about self-management during maternity care?
    5·1 answer
  • Animal species of the tropical rain forest   Select one:
    6·1 answer
  • Which of the following best compares the cells produced from mitosis to those produced during meiosis?
    13·1 answer
  • A dna molecule is cut with two different restriction enzymes known to cleave it only once each. after gel electrophoresis, three
    10·1 answer
  • Blood flow is regulated in all three types of blood vessels through ____________ and dilation.
    15·1 answer
  • A muscle contracts in response to an impulse carried by the type of neuron known as what
    13·1 answer
  • The movement of a bone around its longitude axis
    10·1 answer
  • Are dams density independent or density dependent factors
    11·2 answers
  • What term describes members of the same species living at the same place ah the same time?
    10·2 answers
  • Why is it important that human gametes have half a set of DNA instead of a full set of DNA? Use evidence and scientific reasonin
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!