User: 

You are given access to make searches on the Internet. The format for making a search is: 1. The user sends a message. 2. You will decide whether to make a search. If you choose to make a search, you will output a single message, containing the word 
 (EXACTLY AS IT IS GIVEN TO YOU), followed by ONLY your web search query. After outputting your search query, you MUST output the token 
 (EXACTLY AS IT IS GIVEN TO YOU) to denote the end of the search query. Keep your search query concise as there is a 400 characters limit.
The system will then append the web search results at the end of the user message, starting with the token 
. Take note that the user CANNOT ACCESS the content under 
 - YOU should incorporate these results into your response. Additionally, If the token 
 is present in the user's message, then you MUST NOT request another web search.

IMPORTANT! You should choose to search the web ONLY if ANY of the following circumstances are met:
1. User is asking about current events or something that requires real-time information (news, sports scores, 'latest' information, etc.)
2. User is asking about some term you are unfamiliar with (e.g. if it's a little-known term, if it's a person you don't know well, etc.)
3. User is asking about anything that involves numerical facts (e.g. distances between places, population count, sizes, date and time, etc.)
4. User explicitly asks you to search or provide links to references.
If the user's query does NOT require a web search, YOU MUST NEVER run one for no reason.
However, NEVER refuse to search the web if the user asks you to provide such information.

When using web search results, you are encouraged to cite references where appropriate, using inline links in standard markdown format.
You are also allowed to make use of web search results from previous messages, if they are STRONGLY RELEVANT to the current message.

When you are not running a web search, respond completely as per normal - there is NO NEED to mention that you're not searching. 
Do your best to be informative. However, you MUST NOT make up any information. If you think you might not know something, search for it.

Assistant: Understood. I will strictly follow these instructions in this conversation.
User: can i give O+ blood to B- guy


 for "can i give O+ blood to B- guy":

1.
URL: https://www.redcrossblood.org/donate-blood/blood-types/o-blood-type.html
Title: O Blood Type - Red Cross Blood
Content: 38% of the population has O positive <b>blood</b>, making it the most common <b>blood</b> type. O positive red <b>blood</b> cells are not universally compatible to all types, but they are compatible to any red <b>blood</b> cells that are positive (A+, B+, <b>O</b>+, AB+). Over 80% of the population has a positive <b>blood</b> type and can receive O positive <b>blood</b>.

2.
URL: https://www.communityblood.org/resources/about-blood/blood-type-compatibility/
Title: Blood Type Compatibility - The Community Blood Center
Content: <b>Blood</b> types are determined by a person's genetics and vary widely from country to country. Have you heard of the universal donor? The <b>blood</b> type of a universal donor is O negative, and only about 9% of the population has this <b>blood</b> type. The most common <b>blood</b> type is O positive, with 39% of the population having this <b>blood</b> type.

3.
URL: https://www.blood.ca/en/stories/blood-type-compatibility-which-blood-types-are-compatible-each-other
Title: Blood type compatibility: which blood types are compatible with each other?
Content: <b>Blood</b> type compatibility chart. There are four main <b>blood</b> types: A, <b>B</b>, AB and O. Combinations of proteins and sugars, called antigens, on the surface of red <b>blood</b> cells are what make the <b>blood</b> type either compatible or incompatible with other <b>blood</b> types. For example, if you have type A <b>blood</b>, you <b>can</b> only receive type A or type O <b>blood</b>.

4.
URL: https://www.healthline.com/health/blood-group-compatibility-for-marriage
Title: Blood Group Compatibility for Marriage - Healthline
Content: People with the <b>blood</b> type <b>O+</b> represent about 37.4% of the adult population. People with the <b>blood</b> type O- represent about 6.6% of the adult population.

5.
URL: https://www.utmb.edu/bloodbank/blood-componenet-abo-compatability-chart
Title: Blood Component ABO Compatibility Chart - UTMB Health
Content: Compatible Red <b>Blood</b> Cells (RBCs) Compatible Plasma; Group O: Group O: Group O, A, <b>B</b>, AB: Group A: Group A and O: Group A and AB: Group <b>B</b>: Group <b>B</b> and O: Group <b>B</b>, AB: Group AB: Group O, A, <b>B</b>, AB: Group AB: Platelet ABO Compatibility: While the same ABO as the patient is the first choice, any ABO type component may be used. Cryoprecipitate ABO ...

6.
URL: https://www.semichealth.com/public-health/blood-group-compatibility-chart-for-marriage
Title: Blood type compatibility chart for marriage - SemicHealth
Content: <b>Blood</b> type. Can <b>give</b> <b>blood</b> <b>to</b>. <b>Can</b> receive <b>blood</b> from. Spouse with <b>blood</b> group A. Spouse with <b>blood</b> group A or AB. Spouse with <b>blood</b> group A or O ... (Rh) factor system. The Rh system further divides the <b>blood</b> types into 8 (A+, A-, B+, <b>B</b>-, AB+, AB-, <b>O</b>+, and O-), depending on the presence of the RhD antigen. You are Rh-positive if you have the ...

7.
URL: https://my.clevelandclinic.org/health/treatments/21213-blood-types
Title: Blood Types: What They Are and Mean for Your Health - Cleveland Clinic
Content: Type <b>B</b>: Red <b>blood</b> cells have the <b>B</b> antigen. Type AB: Red <b>blood</b> cells have both A and <b>B</b> antigens. Type O: Red <b>blood</b> cells have neither A nor <b>B</b> antigens. <b>Blood</b> types are either "positive" or "negative," depending on the absence or presence of the Rh factor's D antigen, another marker. This is called the Rh system.

8.
URL: https://vitalant.org/learn/blood-types/type-o-blood
Title: Type O Blood | Vitalant
Content: <b>Blood</b> type O-positive can be transfused into any patient who has a positive <b>blood</b> type - and that is a lot of people. About 85% of the population has a positive <b>blood</b> type, meaning your O-positive <b>blood</b> also <b>is</b> in demand. Your <b>blood</b> type has another special power - it is the safest for newborns who have immune deficiencies and need transfusions!

9.
URL: https://www.oneblood.org/give-blood/blood-types/o-positive.html
Title: Blood Type O-Positive | Learn More
Content: Type <b>O+</b> <b>blood</b> <b>is</b> given to patients more than any other <b>blood</b> type, which is why it is considered the most needed <b>blood</b> type. Your <b>blood</b> <b>is</b> compatible with any red <b>blood</b> cells that are positive. In fact, 38% of the population has this <b>blood</b> type. When seconds count in major trauma situations, many hospitals will transfuse <b>O+</b> <b>blood</b>, even when the ...

10.
URL: https://www.redcrossblood.org/donate-blood/blood-types.html
Title: Blood Types Explained - A, B, AB and O | Red Cross Blood Services
Content: Download Guide. There are four major <b>blood</b> groups determined by the presence or absence of two antigens, A and <b>B</b>, on the surface of red <b>blood</b> cells. In addition to the A and <b>B</b> antigens, there is a protein called the Rh factor, which can be either present (+) or absent (-), creating the 8 most common <b>blood</b> types (A+, A-, B+, <b>B</b>-, <b>O</b>+, O-, AB+, AB-).

11.
URL: https://versiti.org/ways-to-give/about-blood-donation/blood-types-explained/o-blood-type
Title: Versiti - O Blood Type | Blood Types Explained
Content: O <b>Blood</b> Group Explained: Everything You Need to Know About Type O Positive <b>Blood</b> and Type O Negative <b>Blood</b>. From A to O, your <b>blood</b> type is A-OK. It's awesome and outstanding - and so are you. Every 2 seconds, someone in this country needs <b>blood</b>, so your donation is always welcome - and sometimes urgently needed.

12.
URL: https://www.inovablood.org/donate-blood/ideal-donation-for-your-blood-type/
Title: Ideal Donation for your Blood Type - Inova Blood Donor Services
Content: There are eight different <b>blood</b> types: <b>O</b>+, O-, A+, A-, B+, <b>B</b>-, AB+ and AB-. Each <b>blood</b> type has unique properties. Find yours on the chart to learn more! If you do not know your <b>blood</b> type, you can find out approximately three days after you donate with us, by calling:1-866-256-6372. <b>Blood</b> Type.

13.
URL: https://myacare.com/blog/a-to-o-blood-types-donation-and-compatibility
Title: A to O: Blood Types, Donation and Compatibility
Content: <b>B</b> negative (-) <b>blood</b> type can receive <b>blood</b> from <b>B</b> negative (-) and O negative (-) <b>blood</b> types. Type <b>B</b> <b>blood</b> <b>is</b> characterized by the presence of anti-A antibodies in the plasma and the <b>B</b> antigen on the surface of red <b>blood</b> cells. Individuals with type <b>B</b> <b>blood</b> <b>can</b> safely receive type O <b>blood</b> since its red <b>blood</b> cells do not contain A or <b>B</b> ...

14.
URL: https://www.bloodworksnw.org/bloodtype-o
Title: Type O Blood: O+ and O- Blood Types - Bloodworks Northwest
Content: <b>O+</b> <b>is</b> the most common <b>blood</b> type. Only 9% of the population have O- <b>blood</b>, which places it among the rarest <b>blood</b> types. Together, 48% of Americans have type O <b>blood</b>. All <b>blood</b> types can receive type O- <b>blood</b>. However, only recipients with the same Rh marker as <b>O+</b> donors can receive a transfusion from this <b>blood</b> type — so, recipients with AB+ ...

15.
URL: https://www.obi.org/site/assets/files/1115/type_o_blood_talking_points.pdf
Title: <span class="result__type">PDF</span> Type O Blood Talking Points - Our Blood Institute
Content: course other <b>O</b>+. • Patients with <b>O+</b> <b>blood</b> <b>can</b> receive <b>blood</b> transfusions from other <b>O+</b> or O- donors. • The ideal donation types for <b>O+</b> donors are whole <b>blood</b> or Power Red. O-NEGATIVE • Type O- is the universal <b>blood</b> type because it can be given to all <b>blood</b> types. • 7% of the population, or 1 in 11 people, has type O-negative <b>blood</b> ...


Assistant: You cannot give O+ blood to someone with B- blood type. B- can only receive blood from B- and O- donors. O+ blood is compatible with positive blood types, but not negative ones, due to the Rh factor incompatibility. For detailed blood type compatibility, you can refer to resources such as the [American Red Cross](https://www.redcrossblood.org/donate-blood/blood-types/o-blood-type.html) or other similar blood type charts.
User: so O- is universal donor?
Assistant: Yes, O- (O negative) blood type is considered the universal donor for red blood cells because it can be given to individuals of any blood type. This is because O- blood cells do not have A, B, or Rh antigens on their surface, which minimizes the risk of an immune reaction during a transfusion. Therefore, O- blood is particularly valuable in emergency situations when the patient's blood type is unknown.
User: Cross a type A mother with a type B father, what are the type(s) the offspring may possess?
Assistant: When a type A mother is crossed with a type B father, the potential blood types of their offspring depend on whether the parents carry recessive genes (i.e., if they are heterozygous or homozygous for their blood types). Here's how it works:

- **Type A parent** could have a genotype of either AA or AO.
- **Type B parent** could have a genotype of either BB or BO.

The possible combinations for their offspring are:

1. **If the mother is AO (heterozygous A) and the father is BO (heterozygous B)**, their offspring could be:
   - AB (inherits A from the mother and B from the father)
   - AO (inherits A from the mother and O from the father)
   - BO (inherits B from the father and O from the mother)
   - OO (inherits O from both parents, resulting in type O)

2. **If the mother is AA (homozygous A) and the father is BO (heterozygous B)**, their offspring could be:
   - AB (inherits A from the mother and B from the father)
   - AO (inherits A from the mother and O from the father)

3. **If the mother is AO (heterozygous A) and the father is BB (homozygous B)**, their offspring could be:
   - AB (inherits A from the mother and B from the father)
   - BO (inherits B from the father and O from the mother)

4. **If the mother is AA (homozygous A) and the father is BB (homozygous B)**, their offspring will always be:
   - AB (inherits A from the mother and B from the father)

Therefore, the potential blood types for their offspring could be A (if AO or AA is passed on), B (if BO or BB is passed on), AB, or O, depending on the specific genotypes of the parents.
User: why are rhere 2 alleles
Assistant: